Westfield High School (Virginia)

Sentient is a classified artificial intelligence (AI)–powered satellite-based intelligence analysis system developed and operated by the National Reconnaissance Office (NRO) of the United States. Described as an artificial brain, Sentient autonomously processes orbital and terrestrial sensor data to detect, track, and forecast activity on and above Earth. The system integrates machine learning with real-time tip-and-cue functionality, enabling coordinated retasking of reconnaissance satellites without human input. Using multimodal intelligence data—from imagery and signals to communications and environmental feeds—Sentient is said to anticipate future events, prioritize targets, and serve as the predictive core of the NRO's Future Ground Architecture. Development and core buildout occurred from 2010 to 2016 under the NRO's Advanced Systems and Technology Directorate. Sentient is said to reduce analyst workload by automating routine surveillance tasks, enabling faster detection of threats and more responsive satellite coordination.

The NAVWAR Space Field Activity (NSFA) is one of three Echelon III activities under the Naval Information Warfare Systems Command (NAVWARSYSCOM) of the United States Navy, co-located with the National Reconnaissance Office (NRO) in Chantilly, Virginia. The activity was established to coordinate naval space and warfare systems activities within the National Reconnaissance Office. NSFA personnel provide naval warfare and acquisition expertise to national reconnaissance programs, coordinate naval space research, development, and acquisition activities with those same national reconnaissance programs, and provide and coordinate training and tools to enable the fleet to use national space capabilities.

The National Reconnaissance Office (NRO) is a member of the United States Intelligence Community and an agency of the United States Department of Defense which designs, builds, launches, and operates the reconnaissance satellites of the U.S. federal government, and provides satellite intelligence to several government agencies, particularly signals intelligence (SIGINT) to the NSA, imagery intelligence (IMINT) to the NGA, and measurement and signature intelligence (MASINT) to the DIA.NRO is considered, along with the Central Intelligence Agency (CIA), National Security Agency (NSA), Defense Intelligence Agency (DIA), and National Geospatial-Intelligence Agency (NGA), to be one of the "big five" U.S. intelligence agencies. The NRO is headquartered in Chantilly, Virginia, 2 miles (3.2 km) south of the Washington Dulles International Airport. The Director of the NRO reports to both the Director of National Intelligence and the Secretary of Defense. The NRO's federal workforce is a hybrid organization consisting of some 3,000 personnel including NRO cadre, Air Force, Army, CIA, NGA, NSA, Navy and US Space Force personnel. A 1996 bipartisan commission report described the NRO as having by far the largest budget of any intelligence agency, and "virtually no federal workforce", accomplishing most of its work through "tens of thousands" of defense contractor personnel.

Schneider Crossroads is an unincorporated community in Fairfax County, in the U.S. state of Virginia. State Route 620 and State Route 609 cross here and it is located 5.3 miles northwest by road from Centreville. It contains little more than a florists' and a site called Cox Farms. Pleasant Valley Golf Club lies to the northeast, with the two other quadrants also incorporated into yet undeveloped Fairfax County Park Authority parks. As the crossroads is a major traffic bottleneck, with traffic flow formally managed by 4-way stop signs, Loudoun County, just west of the crossroads, offered over a million of the county's funds in 2012 to pay for the intersection upgrade as their residents were inconvenienced the most by the traffic problem, although the intersection is completely in Fairfax County. The Virginia Department of Transportation determined that the optimal solution was a roundabout which was built from 2015 to 2016. Although traffic is much improved, the poor nature of the two-lane Braddock Road to the east of the traffic circle is now the main impediment of east-bound morning traffic.

The Meteoritical Society is a non-profit scholarly organization founded in 1933 to promote research and education in planetary science with emphasis on studies of meteorites and other extraterrestrial materials that further our understanding of the origin and history of the Solar System.

US Immigration and Customs Enforcement (ICE) operates a Washington Field Office in Chantilly, Virginia, which is one of twenty-five coordinating locations for its Enforcement and Removal Operations. The office includes a temporary holding facility for detained immigrants. In 2025, a shift ICE shifted policy allowing such facilities, previously limited to holding detainees for no more than 12 hours, to house them for up to three days. The Washington Field Office, which has no beds for detainees, held 40 to 90 detainees in a single room for multiple days in August and September 2025. The three-day limit was often exceeded according to an attorney for the National Immigration Project. After a month of attempting to get access to the facility, US Congress members visited the facility on September 26, 2025, and reported somewhat improved conditions.

The National Captioning Institute, Inc. (NCI) is a 501(c)(3) nonprofit organization that provides real-time and off-line closed captioning, subtitling and translation, described video, web captioning, and Spanish captioning for television and films. Created in 1979 and headquartered in Chantilly, Virginia, the organization was the first to caption live TV and home video, and holds the trademark on the display icon featuring a simple geometric rendering of a television set merged with a speech balloon to indicate that a program is captioned by National Captioning Institute. National Captioning Institute also has an office in Santa Clarita, California.

The Enola Gay () is a Boeing B-29 Superfortress bomber, named after Enola Gay Tibbets, the mother of the pilot, Colonel Paul Tibbets. On 6 August 1945, during the final stages of World War II, it became the first aircraft to drop an atomic bomb in warfare. The bomb, code-named "Little Boy", was targeted at the city of Hiroshima, Japan, and caused the destruction of about three quarters of the city. Enola Gay participated in the second nuclear attack as the weather reconnaissance aircraft for the primary target of Kokura. Clouds and drifting smoke resulted in Nagasaki, a secondary target, being bombed instead. After the war, the Enola Gay returned to the United States, where it was operated from Roswell Army Air Field, New Mexico. In May 1946, it was flown to Kwajalein for the Operation Crossroads nuclear tests in the Pacific, but was not chosen to make the test drop at Bikini Atoll. Later that year, it was transferred to the Smithsonian Institution and spent many years parked at air bases exposed to the weather and souvenir hunters, before its 1961 disassembly and storage at a Smithsonian facility in Suitland, Maryland. In the 1980s, veterans groups engaged in a call for the Smithsonian to put the aircraft on display, leading to an acrimonious debate about exhibiting the aircraft without a proper historical context. The cockpit and nose section of the aircraft were exhibited at the National Air and Space Museum (NASM) on the National Mall, for the bombing's 50th anniversary in 1995, amid controversy. Since 2003, the entire restored B-29 has been on display at NASM's Steven F. Udvar-Hazy Center. The last survivor of its crew, Theodore Van Kirk, died on 28 July 2014 at the age of 93.

The American Registry for Internet Numbers (ARIN) is the regional Internet registry for the United States, Canada, and many Caribbean and North Atlantic islands. ARIN manages the distribution of Internet number resources, including IPv4 and IPv6 address space and AS numbers. ARIN opened for business on December 22, 1997 after incorporating on April 18, 1997. ARIN is a nonprofit corporation with headquarters in Chantilly, Virginia, United States.ARIN is one of five regional Internet registries in the world. Like the other regional Internet registries, ARIN: Provides services related to the technical coordination and management of Internet number resources Facilitates policy development by its members and stakeholders Participates in the international Internet community Is a nonprofit, community-based organization Is governed by an executive board elected by its membership

The Steven F. Udvar-Hazy Center, also called the Udvar-Hazy Center, is the Smithsonian National Air and Space Museum (NASM)'s annex at Washington Dulles International Airport in the Chantilly area of Fairfax County, Virginia. It holds numerous exhibits, including the Space Shuttle Discovery, the Enola Gay, and the Boeing 367-80, the main prototype for the popular Boeing 707 airliner. The 760,000-square-foot (71,000 m2; 17-acre; 7.1 ha) facility was made possible by a $65 million donation in October 1999 to the Smithsonian Institution by Steven F. Udvar-Házy, an immigrant from Hungary and co-founder of the International Lease Finance Corporation, an aircraft leasing corporation. The main NASM building, located on the National Mall in Washington, D.C., had always contained more artifacts than could be displayed, and most of the collection had been stored, unavailable to visitors, at the Paul E. Garber Preservation, Restoration, and Storage Facility in Silver Hill, Maryland. A substantial addition to the center encompassing restoration, conservation and collection-storage facilities was completed in 2010. Restoration facilities and museum archives were moved from the museum's Garber facility to the new sections of the Udvar-Hazy Center.

The Church of the Epiphany is an Anglican church located in Chantilly, Virginia. It emphasizes "Encountering God through beautiful worship and believing prayer, building a multigenerational congregation that loves children and families and equipping every member to share the good news of Jesus Christ." Notable ministries and activities include a yearly free "Sports Camp" in Herndon for elementary-age students, bi-weekly worship and other ministry activities at the Arbor Terrace memory care home in Chantilly, and monthly donations of food that go home with students in need at Coates Elementary School in Herndon. Each year, Epiphany designates the congregation's Christmas Eve offering to a special project, alternating between supporting mission outside of the United States and meeting local needs in Fairfax County. Church services on Sunday at are 8:00 and 10:15 am. Average Sunday attendance at Epiphany was 155 in 2018. Church of the Epiphany is part of the Diocese of the Mid-Atlantic of the Anglican Church in North America. Its current rector is the Rev. Peter Frank. Epiphany's current associate rector is the Rev. Pamela Meeks.

Sully Historic Site, more commonly known as Sully Plantation, is both a Virginia landmark and nationally registered historic place in Chantilly, Virginia.The earliest recorded claim to the land was made by the Doeg. Later the Lee family of Virginia owned the land from 1725 to 1839. Richard Bland Lee did not build the main house until 1794. Following the purchase by William Swartwort in 1838, Sully was used as a home, a working farm, or both by a series of private owners. Then in 1958, Sully was acquired by the federal government as a part of the area to be used for the construction of Dulles Airport. Today the Fairfax County Park Authority operates the site with a specific focus on the Lee family.