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NASA Institute for Advanced Concepts

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The NASA Innovative Advanced Concepts ( NIAC ) is a NASA program for development of far reaching, long term advanced concepts by "creating breakthroughs, radically better or entirely new aerospace concepts". It funds work on revolutionary aeronautics and space concepts that can dramatically impact how NASA develops and conducts its missions. The program operated under the name NASA Institute for Advanced Concepts from 1998 until 2007 (managed by the Universities Space Research Association on behalf of NASA), and was reestablished in 2011 under the name NASA Innovative Advanced Concepts and continues to the present.

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83-526: The NASA Institute for Advanced Concepts ( NIAC ) was a NASA-funded program that was operated by the Universities Space Research Association (USRA) for NASA from 1998 until its closure on 31 August 2007. NIAC was to serve as "an independent open forum, a high-level point of entry to NASA for an external community of innovators, and an external capability for analysis and definition of advanced aeronautics and space concepts to complement

166-488: A cascading waterfall with Italian Renaissance -style architecture. Modern , Postmodern , contemporary , and other non-classical architectural styles are also seen in the city. The National Museum of African American History and Culture deeply contrasts the stone-based neoclassical buildings on the National Mall with a design that combines modern engineering with heavy inspiration from African art . The interior of

249-499: A referendum on D.C. statehood resulted in an 85% support among Washington, D.C., voters for it to become the nation's 51st state . In March 2017, the city's congressional delegate Eleanor Holmes Norton introduced a bill for statehood. Reintroduced in 2019 and 2021 as the Washington, D.C., Admission Act , the U.S. House of Representatives passed it in April 2021. After not progressing in

332-1170: A fourth solicitation, and selected 12 projects for Phase-1 studies and 5 projects to continue on to phase II projects. Projects selected include a study of hibernation for astronauts and a submarine operating on Saturn 's moon Titan 2014 Phase I selections were: The 2015 Phase-1 projects included a hopping vehicle to visit Triton and others, and seven phase two projects. Phase I projects selected were: In addition, seven projects were selected for continuation into Phase II: Phase I projects selected were: In addition, eight projects were selected for continuation into Phase II: The fifteen projects selected for Phase I were: In addition, seven projects were selected for continuation into Phase II: The sixteen projects selected for Phase I were: In addition, nine projects were selected for continuation into Phase II: The twelve projects selected for Phase I were: In addition, six projects were selected for continuation into Phase II: Also, two projects were selected for Phase III: The sixteen projects selected for Phase I were: In addition, six projects were selected for continuation into Phase II: Also, one project

415-408: A garden-lined grand avenue about 1 mile (1.6 km) long and 400 feet (120 m) wide in an area that is now the National Mall inspired by the grounds at Versailles and Tuileries Gardens. In March 1792, President Washington dismissed L'Enfant due to conflicts with the three commissioners appointed to supervise the capital's construction. Andrew Ellicott , who worked with L'Enfant in surveying

498-496: A modern glass exterior and heavy curvature. CityCenterDC is home to Palmer Alley, a pedestrian-only walkway, and houses several apartment buildings, restaurants, and luxury-brand storefronts with streamlined glass and metal facades. Outside Downtown D.C., architectural styles are more varied. Historic buildings are designed primarily in the Queen Anne , Châteauesque , Richardsonian Romanesque , Georgian Revival , Beaux-Arts , and

581-675: A new understanding about the origin of the Moon. Today, the LPI, located in USRA's facility near NASA's Johnson Space Center, continues the important job of organizing community activities to support NASA's exploration of the Solar System , with a specialized scientific and administrative staff. On March 1, 1968, President Lyndon Johnson announced the creation of the Lunar Science Institute (LSI), and USRA

664-431: A relatively high homelessness rate, despite its high living standard compared to many American cities. Washington, D.C., is divided into four quadrants of unequal area: Northwest (NW) , Northeast (NE) , Southeast (SE) , and Southwest (SW) . The axes bounding the quadrants radiate from the U.S. Capitol. All road names include the quadrant abbreviation to indicate their location. House numbers generally correspond with

747-577: A snowstorm in January 1772. Hurricanes or their remnants occasionally impact the area in late summer and early fall. However, they usually are weak by the time they reach Washington, partly due to the city's inland location. Flooding of the Potomac River , however, caused by a combination of high tide, storm surge, and runoff, has been known to cause extensive property damage in the Georgetown neighborhood of

830-657: A special committee charged with beautifying Washington's ceremonial core. What became known as the McMillan Plan was finalized in 1901 and included relandscaping the Capitol grounds and the National Mall, clearing slums, and establishing a new citywide park system. The plan is thought to have largely preserved L'Enfant's intended design for the city. By law, the city's skyline is low and sprawling. The federal Height of Buildings Act of 1910 prohibits buildings with height exceeding

913-627: A stream valley that bisects the city. Established in 1890, it is the country's fourth-oldest national park and is home to a variety of plant and animal species, including raccoon, deer, owls, and coyotes. Other National Park Service properties include the Chesapeake and Ohio Canal National Historical Park , the National Mall and Memorial Parks , Theodore Roosevelt Island , Columbia Island , Fort Dupont Park , Meridian Hill Park , Kenilworth Park and Aquatic Gardens , and Anacostia Park . The District of Columbia Department of Parks and Recreation maintains

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996-468: A variety of Victorian styles. Rowhouses are prominent in areas developed after the Civil War and typically follow Federal and late Victorian designs. Georgetown 's Old Stone House , built in 1765, is the oldest-standing building in the city. Founded in 1789, Georgetown University features a mix of Romanesque and Gothic Revival architecture . The Ronald Reagan Building is the largest building in

1079-861: Is generally popular among tourists and locals. In 2007, six of the top ten buildings in the American Institute of Architects ' ranking of America's Favorite Architecture were in the city: the White House , Washington National Cathedral , the Jefferson Memorial , the United States Capitol , the Lincoln Memorial , and the Vietnam Veterans Memorial . The neoclassical , Georgian , Gothic , and Modern styles are reflected among these six structures and many other prominent edifices in

1162-650: Is home to many national monuments and museums , located most prominently on or around the National Mall , including the Jefferson Memorial , the Lincoln Memorial , and the Washington Monument . It hosts 177 foreign embassies and serves as the headquarters for the World Bank , the International Monetary Fund , the Organization of American States , and other international organizations. Home to many of

1245-480: Is in plant hardiness zone 8a near downtown, and zone 7b elsewhere in the city. Summers are hot and humid with a July daily average of 79.8 °F (26.6 °C) and average daily relative humidity around 66%, which can cause moderate personal discomfort. Heat indices regularly approach 100 °F (38 °C) at the height of summer. The combination of heat and humidity in the summer brings very frequent thunderstorms, some of which occasionally produce tornadoes in

1328-519: Is its system of standing panels of technical experts, drawn from the research community, to provide oversight for USRA's institutes, centers, divisions and programs. USRA was founded in 1969, at NASA's request, under the auspices of the National Academy of Sciences. Just prior to the Apollo 11 Moon landing, and the return of the lunar samples, NASA sought a new partner organization to engage and organize

1411-470: Is sea level at the Potomac River. The geographic center of Washington is near the intersection of 4th and L streets NW. The district has 7,464 acres (30.21 km ) of parkland, about 19% of the city's total area, the second-highest among high-density U.S. cities after Philadelphia . The city's sizable parkland was a factor in the city being ranked as third in the nation for park access and quality in

1494-492: The Anacostia River to the east. Washington, D.C.'s street grid was extended, where possible, throughout the district starting in 1888. Georgetown's streets were renamed in 1895. Some streets are particularly noteworthy, including Pennsylvania Avenue , which connects the White House to the Capitol; and K Street, which houses the offices of many lobbying groups. Constitution Avenue and Independence Avenue , located on

1577-623: The Compensated Emancipation Act in 1862, which ended slavery in the district, freeing about 3,100 slaves in the district nine months before the Emancipation Proclamation . In 1868, Congress granted the district's African American male residents the right to vote in municipal elections. By 1870, the district's population had grown 75% in a decade to nearly 132,000 people, yet the city still lacked paved roads and basic sanitation. Some members of Congress suggested moving

1660-685: The Continental Congress and under the Articles of Confederation . New York City was the first capital upon the adoption of the Constitution , succeeded by Philadelphia , which was capital from 1790 to 1800. On October 6, 1783, after the capital was forced by the Pennsylvania Mutiny of 1783 to move to Princeton, Congress resolved to consider a new location for it. The following day, Elbridge Gerry of Massachusetts moved "that buildings for

1743-580: The District of Columbia and commonly known as Washington or D.C. , is the capital city and federal district of the United States . The city is on the Potomac River , across from Virginia , and shares land borders with Maryland to its north and east. It was named after George Washington , the first president of the United States . The district is named after Columbia , the female personification of

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1826-739: The District of Columbia Organic Act of 1801 , which officially organized the district and placed the entire territory under the exclusive control of the federal government. The area within the district was organized into two counties, the County of Washington to the east and north of the Potomac and the County of Alexandria to the west and south. After the Act's passage, citizens in the district were no longer considered residents of Maryland or Virginia, which ended their representation in Congress. On August 24, 1814, during

1909-477: The Potomac River forms the district's border with Virginia and has two major tributaries, the Anacostia River and Rock Creek . Tiber Creek , a natural watercourse that once passed through the National Mall , was fully enclosed underground during the 1870s. The creek also formed a portion of the now-filled Washington City Canal , which allowed passage through the city to the Anacostia River from 1815 until

1992-602: The Twenty-third Amendment , passed in 1961. Washington, D.C. anchors the southern end of the Northeast megalopolis . As the seat of the U.S. federal government , the city is an important world political capital . The city hosts the buildings that house federal government headquarters, including the White House , the Capitol, the Supreme Court Building , and multiple federal departments and agencies . The city

2075-428: The U.S. East Coast . The city has a total area of 68.34 square miles (177 km ), of which 61.05 square miles (158.1 km ) is land and 7.29 square miles (18.9 km ) (10.67%) is water. The district is bordered by Montgomery County, Maryland , to the northwest; Prince George's County, Maryland , to the east; Arlington County, Virginia , to the west; and Alexandria, Virginia , to the south. The south bank of

2158-616: The War of 1812 , British forces invaded and occupied the city after defeating an American force at Bladensburg . In retaliation for acts of destruction by American troops in the Canadas , the British set fire to government buildings in the city, gutting the United States Capitol , the Treasury Building , and the White House in what became known as the burning of Washington . However, a storm forced

2241-600: The Washington Metro stations and the Hirshhorn Museum and Sculpture Garden are designed with strong influence from the 20th-century Brutalism movement. The Smithsonian Institution Building is built of Seneca red sandstone in the Norman Revival style. The Old Post Office building, located on Pennsylvania Avenue and completed in 1899, was the first building in the city to have a steel frame structure and

2324-515: The 1850s. The Chesapeake and Ohio Canal starts in Georgetown and was used during the 19th century to bypass the Little Falls of the Potomac River, located at the northwest edge of the city at the Atlantic Seaboard fall line . The highest natural elevation in the district is 409 feet (125 m) above sea level at Fort Reno Park in upper northwest Washington, D.C. The lowest point

2407-473: The 2018 ParkScore ranking of the park systems of the nation's 100 most populous cities, according to Trust for Public Land , a non-profit organization. The National Park Service manages most of the 9,122 acres (36.92 km ) of city land owned by the U.S. government. Rock Creek Park is a 1,754-acre (7.10 km ) urban forest in Northwest Washington, which extends 9.3 miles (15.0 km) through

2490-504: The British to evacuate the city after just 24 hours. Most government buildings were repaired quickly, but the Capitol, which was largely under construction at the time, would not be completed in its current form until 1868. In the 1830s, the district's southern territory of Alexandria declined economically, due in part to its neglect by Congress. Alexandria was a major market in the domestic slave trade and pro-slavery residents feared that abolitionists in Congress would end slavery in

2573-510: The District from its founding. The building of Washington likely relied in significant part on slave labor, and slave receipts have been found for the White House, Capitol Building, and establishment of Georgetown University. The city became an important slave market and a center of the nation's internal slave trade . After its survey, the new federal city was constructed on the north bank of

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2656-480: The District of Columbia. Shepherd authorized large projects that modernized the city but bankrupted its government. In 1874, Congress replaced the territorial government with an appointed three-member board of commissioners. In 1888, the city's first motorized streetcars began service. Their introduction generated growth in areas of the district beyond the City of Washington's original boundaries, leading to an expansion of

2739-533: The Lunar Science Institute and engaging the scientific community in the analysis of lunar samples that would be returned to Earth during the Apollo missions. Now called the Lunar and Planetary Institute, the LPI cultivated strong collaboration between NASA and the international research community to help organize a new research discipline: lunar and planetary science. The LPI helped lead research that resulted in

2822-823: The NASA Innovative Advanced Concepts program, NASA is taking the long-term view of technological investment and the advancement that is essential for accomplishing our missions. We are inventing the ways in which next-generation aircraft and spacecraft will change the world and inspiring Americans to take bold steps." The revived NIAC, with the slightly-changed name "NASA Innovative Advanced Concepts," funded thirty phase-I studies in 2011 to investigate advanced concepts. In August 2012, NIAC announced selection of 18 new phase-I proposals, along with Phase-II grants for continuation of 10 projects selected in earlier solicitations. These include many projects ranging from Landsailing rovers on Venus to schemes to explore under

2905-444: The Potomac River, to the east of Georgetown centered on Capitol Hill . On September 9, 1791, three commissioners overseeing the capital's construction named the city in honor of President Washington. The same day, the federal district was named Columbia, a feminine form of Columbus , which was a poetic name for the United States commonly used at that time. Congress held its first session there on November 17, 1800. Congress passed

2988-455: The Residence Act, the exact location was to be selected by President George Washington , who signed the bill into law on July 16, 1790. Formed from land donated by Maryland and Virginia, the initial shape of the federal district was a square measuring 10 miles (16 km) on each side and totaling 100 square miles (259 km ). Two pre-existing settlements were included in the territory,

3071-588: The Senate and signed by president; it would have renamed the city Washington, Douglas Commonwealth and shrunk the Federal District to about the size of the national mall. Designed in 1791 by Pierre Charles L'Enfant , the city is divided into quadrants , which are centered around the Capitol Building and include 131 neighborhoods . As of the 2020 census , the city had a population of 689,545. Commuters from

3154-464: The Senate, the statehood bill was introduced again in January 2023. The bill would have made D.C. into a state with one representative and two senators, with the name Washington, Douglas Commonwealth (thus keeping the same abbreviation Washington, D.C.). The legalities, reasons, and impact of statehood have been heavily debated in the 2020s. Washington, D.C., is located in the Mid-Atlantic region of

3237-494: The United Kingdom. USRA provides a mechanism through which universities can cooperate effectively with one another, with the government, and with other organizations to further space science and technology, and to promote education in these areas. Its mission is carried out through the institutes, centers, divisions, and programs. Administrative and scientific personnel now number about 420. A unique feature of USRA's management

3320-881: The United States Constitution was ratified in 1961, granting the district three votes in the Electoral College for the election of president and vice president, but still not affording the city's residents representation in Congress. After the assassination of civil rights leader Martin Luther King Jr. on April 4, 1968, riots broke out in the city , primarily in the ;Street, 14th Street, 7th Street, and H Street corridors, which were predominantly black residential and commercial areas. The riots raged for three days until more than 13,600 federal troops and Washington, D.C., Army National Guardsmen stopped

3403-449: The acronym NIAC. Studies funded by the original NIAC 1998–2007 include On July 2, 2007, NIAC announced that "NASA, faced with the constraints of achieving the Vision for Space Exploration , has made the difficult decision to terminate NIAC, which has been funded by NASA since inception. Effective August 31, 2007, the original NIAC organization ceased operations. Following the termination of

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3486-458: The advanced concept activities conducted within NASA." NIAC sought proposals for revolutionary aeronautics and space concepts to dramatically impact how NASA developed and conducted its missions. NIAC provided a highly visible, recognizable, and high-level entry point for outside thinkers and researchers. It encouraged proposers to think decades into the future in pursuit of concepts that would "leapfrog"

3569-508: The already-implemented L'Enfant Plan , with the new McMillan Plan leading urban development in the city throughout the movement. Much of the old Victorian Mall was replaced with modern Neoclassical and Beaux-Arts architecture ; these designs are still prevalent in the city's governmental buildings today. Increased federal spending under the New Deal in the 1930s led to the construction of new government buildings, memorials, and museums in

3652-498: The area. Blizzards affect Washington once every four to six years on average. The most violent storms, known as nor'easters , often impact large regions of the East Coast . From January 27 to 28, 1922 , the city officially received 28 inches (71 cm) of snowfall, the largest snowstorm since official measurements began in 1885. According to notes kept at the time, the city received between 30 and 36 inches (76 and 91 cm) from

3735-556: The capital farther west, but President Ulysses S. Grant refused to consider the proposal. In the Organic Act of 1871 , Congress repealed the individual charters of the cities of Washington and Georgetown , abolished Washington County , and created a new territorial government for the whole District of Columbia. These steps made "the city of Washington...legally indistinguishable from the District of Columbia." In 1873, President Grant appointed Alexander Robey Shepherd as Governor of

3818-585: The capital. In the Compromise of 1790 , Madison, Alexander Hamilton , and Thomas Jefferson agreed that the federal government would pay each state's remaining Revolutionary War debts in exchange for establishing the new national capital in the Southern United States . On July 9, 1790, Congress passed the Residence Act , which approved the creation of a national capital on the Potomac River . Under

3901-556: The city's 900 acres (3.6 km ) of athletic fields and playgrounds, 40 swimming pools, and 68 recreation centers. The U.S. Department of Agriculture operates the 446-acre (1.80 km ) United States National Arboretum in Northeast Washington, D.C. Washington's climate is humid subtropical ( Köppen : Cfa ), or oceanic ( Trewartha : Do bordering Cf downtown). Winters are cool to cold with some snow of varying intensity, while summers are hot and humid. The district

3984-402: The city's Maryland and Virginia suburbs raise the city's daytime population to more than one million during the workweek. The Washington metropolitan area , which includes parts of Maryland, Virginia, and West Virginia , is the country's seventh-largest metropolitan area , with a 2023 population of 6.3 million residents. A locally elected mayor and 13-member council have governed

4067-696: The city's classical-style architecture include buildings constructed in the French Second Empire style, including the Eisenhower Executive Office Building , and the modernist Watergate complex . The Thomas Jefferson Building , the main Library of Congress building, and the historic Willard Hotel are built in Beaux-Arts style , popular throughout the world in the late nineteenth and early twentieth centuries. Meridian Hill Park contains

4150-421: The city, was then tasked with completing its design. Though Ellicott revised the original L'Enfant plans, including changing some street patterns, L'Enfant is still credited with the city's overall design. By the early 20th century, however, L'Enfant's vision of a grand national capital was marred by slums and randomly placed buildings in the city, including a railroad station on the National Mall. Congress formed

4233-530: The city. Many of the government buildings, monuments, and museums along the National Mall and surrounding areas are heavily inspired by classical Roman and Greek architecture. The designs of the White House, the U.S. Capitol, Supreme Court Building , Washington Monument , National Gallery of Art , Lincoln Memorial, and Jefferson Memorial are all heavily drawn from these classical architectural movements and feature large pediments, domes, columns in classical order, and heavy stone walls. Notable exceptions to

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4316-462: The city. Precipitation occurs throughout the year. The highest recorded temperature was 106 °F (41 °C) on August 6, 1918, and on July 20, 1930. The lowest recorded temperature was −15 °F (−26 °C) on February 11, 1899 , right before the Great Blizzard of 1899 . During a typical year, the city averages about 37 days at or above 90 °F (32 °C) and 64 nights at or below

4399-448: The civilian space program grew to encompass missions in heliophysics, planetary science, astrophysics, Earth science, microgravity science, and other disciplines, as well as technology development, USRA worked alongside NASA. All the efforts under taken by USRA from its founding to the present day fulfil its non-profit purpose and also realize Webb's vision of close partnership and engagement of universities. USRA's first task: operation of

4482-477: The district . Alexandria's citizens petitioned Virginia to retake the land it had donated to form the district, a process known as retrocession . The Virginia General Assembly voted in February 1846, to accept the return of Alexandria. On July 9, 1846, Congress went further, agreeing to return all territory that Virginia had ceded to the district during its formation. This left the district's area consisting only of

4565-490: The district over the next few decades. Georgetown's street grid and other administrative details were formally merged with those of the City of Washington in 1895. However, the city had poor housing and strained public works, leading it to become the first city in the nation to undergo urban renewal projects as part of the City Beautiful movement in the early 20th century. The City Beautiful movement built heavily upon

4648-425: The district since 1973, though Congress retains the power to overturn local laws. Washington, D.C., residents are, on the federal level, politically disenfranchised since the city's residents do not have voting representation in Congress; the city's residents elect a single non-voting congressional delegate to the U.S. House of Representatives. The city's voters choose three presidential electors in accordance with

4731-515: The district, though the chairman of the House Subcommittee on District Appropriations, Ross A. Collins of Mississippi , justified cuts to funds for welfare and education for local residents by saying that "my constituents wouldn't stand for spending money on niggers." World War II led to an expansion of federal employees in the city; by 1950, the district's population reached its peak of 802,178 residents. The Twenty-third Amendment to

4814-501: The evolution of contemporary aerospace systems. These concepts were expected to be based on sound scientific principles and attainable within a 10 to 40-year time frame. NIAC received a total of 1,309 proposals and awarded 126 Phase I grants and 42 Phase II contracts for a total value of $ 27.3 million from February 1998 to 2007. NASA announced on March 1, 2011 that the NIAC concept would be re-established at NASA with similar goals, maintaining

4897-407: The first session in the unfinished Capitol Building in 1800 after the capital moved from Philadelphia . In 1801, the District of Columbia, formerly part of Maryland and Virginia and including the existing settlements of Georgetown and Alexandria , was officially recognized as the federal district; initially, the city was a separate settlement within the larger district. In 1846, Congress returned

4980-666: The first to use electrical wiring in its design. Notable contemporary residential buildings, restaurants, shops, and office buildings in the city include the Wharf on the Southwest Waterfront , Navy Yard along the Anacostia River , and CityCenterDC in Downtown . The Wharf has seen the construction of several high-rise office and residential buildings overlooking the Potomac River . Additionally, restaurants, bars, and shops have been opened at street level. Many of these buildings have

5063-404: The freezing mark (32 °F or 0 °C). On average, the first day with a minimum at or below freezing is November 18 and the last day is March 27. Washington, D.C., was a planned city , and many of the city's street grids were developed in that initial plan. In 1791, President George Washington commissioned Pierre Charles L'Enfant , a French-born military engineer and artist, to design

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5146-780: The ice of Europa . Phase I projects selected were: In 2013 NIAC conducted a third solicitation for proposals, with projects to start in the summer of 2013. NASA selected 12 phase-I projects with a wide range of imaginative concepts, including 3-D printing of biomaterials, such as arrays of cells; using galactic rays to map the insides of asteroids; and an "eternal flight" platform that could hover in Earth's atmosphere, potentially providing better imaging, Wi-Fi, power generation, and other applications. They selected 6 phase II projects, including photonic laser thrusters, extreme sample return, and innovative spherical robots designed for planetary exploration. Phase I selections were: In 2013, NIAC conducted

5229-456: The land originally ceded by Virginia , including the city of Alexandria. In 1871, it created a single municipality for the remaining portion of the district. There have been several unsuccessful efforts to make the district into a state since the 1880s; a statehood bill passed the House of Representatives in 2021 but was not adopted by the U.S. Senate . To become law it would have to be passed by

5312-849: The management of Lunar Science Institute (later renamed the Lunar and Planetary Institute ) but, armed with its broad charter, the consortium began to explore other ways to serve the university space research community as early as 1970. Today, USRA researchers are involved with university, government and industry scientists and engineers in a broad array of space and aeronautics related fields, including astronomy and astrophysics , Earth sciences , microgravity , life sciences , space technology , computer science , and advanced concepts. Most USRA research activities include related educational components. The presidents of USRA have been: Current Institutes and Programs Previous Institutes and Programs Washington, D.C. Washington, D.C. , formally

5395-409: The nation . The U.S. Constitution in 1789 called for the creation of a federal district under the exclusive jurisdiction of the U.S. Congress . As such, Washington, D.C., is not part of any state , and is not one itself. The Residence Act , adopted on July 16, 1790, approved the creation of the capital district along the Potomac River. The city was founded in 1791, and the 6th Congress held

5478-542: The nation's largest industry associations, non-profit organizations, and think tanks , D.C. is known as a lobbying hub, with K Street as the industry center. The city had 20.7 million domestic visitors and 1.2 million international visitors, ranking seventh among U.S. cities as of 2022. The Algonquian -speaking Piscataway people , also known as the Conoy, inhabited the lands around the Potomac River and present-day Washington, D.C., when Europeans first arrived and colonized

5561-408: The need for the national government not to rely on any state for its own security. Article One, Section Eight of the Constitution permits the establishment of a "District (not exceeding ten miles square) as may, by cession of particular states, and the acceptance of Congress, become the seat of the government of the United States". However, the constitution does not specify a location for

5644-496: The new capital. He enlisted the help of Isaac Roberdeau, Étienne Sulpice Hallet and Scottish surveyor Alexander Ralston to help lay out the city plan. The L'Enfant Plan featured broad streets and avenues radiating out from rectangles, providing room for open space and landscaping. L'Enfant was also provided a roll of maps by Thomas Jefferson depicting Frankfurt, Amsterdam, Strasbourg, Paris, Orleans, Bordeaux, Lyon, Marseille, Turin, and Milan. L'Enfant's design also envisioned

5727-473: The north and south sides of the National Mall, respectively, are home to many of Washington's iconic museums, including many Smithsonian Institution buildings and the National Archives Building . Washington hosts 177 foreign embassies ; these maintain nearly 300 buildings and more than 1,600 residential properties, many of which are on a section of Massachusetts Avenue informally known as Embassy Row . The architecture of Washington, D.C., varies greatly and

5810-404: The number of blocks away from the Capitol. Most streets are set out in a grid pattern with east–west streets named with letters (e.g., C Street SW), north–south streets with numbers (e.g., 4th Street NW), and diagonal avenues, many of which are named after states . The City of Washington was bordered on the north by Boundary Street (renamed Florida Avenue in 1890); Rock Creek to the west, and

5893-450: The original NIAC program, Congress requested a review of the NIAC program by the United States National Research Council (NRC) of the National Academy of Sciences . The review was done in 2009, and concluded that in order to achieve its mission, NASA needs "a mechanism to investigate visionary, far-reaching advanced concepts," and recommended that NIAC, or a NIAC-like program, should be reestablished. Consistent with this recommendation, it

5976-563: The port of Georgetown , founded in 1751, and the port city of Alexandria, Virginia , founded in 1749. In 1791 and 1792, a team led by Andrew Ellicott , including Ellicott's brothers Joseph and Benjamin and African American astronomer Benjamin Banneker , whose parents had been enslaved, surveyed the borders of the federal district and placed boundary stones at every mile point; many of these stones are still standing. Both Maryland and Virginia were slave states , and slavery existed in

6059-472: The portion originally donated by Maryland. Confirming the fears of pro-slavery Alexandrians, the Compromise of 1850 outlawed the slave trade in the district, although not slavery itself. The outbreak of the American Civil War in 1861 led to the expansion of the federal government and notable growth in the city's population, including a large influx of freed slaves. President Abraham Lincoln signed

6142-526: The region in the early 17th century. The Nacotchtank , also called the Nacostines by Catholic missionaries , maintained settlements around the Anacostia River in present-day Washington, D.C. Conflicts with European colonists and neighboring tribes ultimately displaced the Piscataway people, some of whom established a new settlement in 1699 near Point of Rocks, Maryland . Nine cities served as capitals to

6225-443: The research community. James Webb, NASA Administrator, wrote to President Frederick Seitz, proposing a university association, chartered to advance space science and technology. The result: the formation of USRA. Webb envisioned this new association as not only working with NASA in lunar science, but also in other scientific disciplines and technology areas, in which NASA would become engaged, as its space exploration role unfolded. As

6308-565: The use of Congress be erected on the banks of the Delaware near Trenton , or of the Potomac , near Georgetown , provided a suitable district can be procured on one of the rivers as aforesaid, for a federal town". In Federalist No. 43 , published January 23, 1788, James Madison argued that the new federal government would need authority over a national capital to provide for its own maintenance and safety. The Pennsylvania Mutiny of 1783 emphasized

6391-442: The violence. Many stores and other buildings were burned, and rebuilding from the riots was not completed until the late 1990s. In 1973, Congress enacted the District of Columbia Home Rule Act providing for an elected mayor and 13-member council for the district. In 1975, Walter Washington became the district's first elected and first black mayor. Since the 1980s, the D.C. statehood movement has grown in prominence. In 2016,

6474-532: The width of the adjacent street plus 20 feet (6.1 m). Despite popular belief, no law has ever limited buildings to the height of the United States Capitol or the 555-foot (169 m) Washington Monument , which remains the district's tallest structure. City leaders have cited the height restriction as a primary reason that the district has limited affordable housing and its metro area has suburban sprawl and traffic problems. Washington, D.C., still has

6557-623: Was announced on March 1, 2011 that the NIAC was to be revived with similar goals leading to the establishment in 2011 of a project within the NASA Office of Chief Technologist, the NASA Innovative Advanced Concepts, maintaining the acronym NIAC. It is now part of the NASA Space Technology Mission Directorate (STMD). According to Michael Gazarik, director of NASA's Space Technology Program , "Through

6640-400: Was appointed USRA president in 2000. Black served as director of USRA's Lunar and Planetary Institute from 1988 to 2001, and is internationally recognized for research in theoretical astrophysics and planetary science . Dr. Jeffrey Isaacson was named president and CEO of USRA, effective October 20, 2014. In 2022 USRA headquarters moved to Washington DC . USRA initially concentrated on

6723-625: Was chartered the following year as the parent organization of LSI. The initial headquarters of USRA was at the University of Virginia , where Professor A. R. Kuhlthau served as the first president of the association. In 1976, Dr. Alexander J. Dessler became the second USRA president. Dessler moved the headquarters of the association to Rice University , where he served as chairman of the Department of Space Physics and Astronomy. In 1978 USRA headquarters moved to Columbia, Maryland . Dr. David C. Black

6806-948: Was incorporated on March 12, 1969, in Washington, D.C. as a private, nonprofit corporation under the auspices of the National Academy of Sciences (NAS). Institutional membership in the association currently stands at 113 universities. All member institutions have graduate programs in space sciences or technology. Besides the 98 member institutions in the United States, there are two member institutions in Canada, four in Europe, two in Israel, one in Australia and one in New Zealand, one in Hong Kong, two in Korea and two in

6889-772: Was selected for continuation into Phase III: The sixteen projects selected for Phase I were: In addition, six projects were selected for continuation into Phase II: Also, one project was selected for continuation into Phase III: The twelve projects selected for Phase I were: In addition, five projects were selected for continuation into Phase II: Also, one project was selected for continuation into Phase III: The fourteen projects selected for Phase I were: In addition, six projects were selected for continuation into Phase II: No projects were selected for continuation into Phase III. The thirteen projects selected for Phase I were: Universities Space Research Association The Universities Space Research Association ( USRA )

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