
Area 51 is the common name of a highly classified United States Air Force (USAF) facility located within the Nevada Test and Training Range. A remote detachment administered by Edwards Air Force Base, the facility is officially called Homey Airport (XTA/KXTA) or Groom Lake. Details of the facility's operations are not made public, but the USAF says that it is an open training range, and it is commonly thought to support the development and testing of experimental aircraft and weapons systems. The USAF acquired the site in 1955, primarily for flight testing the Lockheed U-2 aircraft.

Area 51: The Dreamland Chronicles is a 1997 non-fiction book about Area 51 in Nevada by David Darlington.

The Center for UFO Studies (CUFOS) is a privately funded UFO research group. The group was founded in 1973 by J. Allen Hynek, who at the time was Chair of the Department of Astronomy at Northwestern University in Illinois.

Citizens Against UFO Secrecy (CAUS) is a freedom of information activist group that advocates for the release of classified information regarding UFOs.

The Mutual UFO Network (MUFON) is a US-based non-profit organization composed of civilian volunteers who study reported UFO sightings. It is one of the oldest and largest organizations of its kind, claiming more than 4,000 members worldwide with chapters and representatives in more than 43 countries and all 50 states. The organization has been criticized for its focus on pseudoscience, and critics say its investigators fail to use the scientific method.

State Route 375 is a 98.414-mile (158.382 km) state highway in Nye and Lincoln counties in south-central Nevada, United States. The highway stretches from State Route 318 at Crystal Springs northwest to U.S. Route 6 at Warm Springs. The route travels through mostly unoccupied desert terrain, with much of its alignment paralleling the northern edges of the Nellis Air Force Range. The road originally traversed through what is now the northern reaches of the air force range in the 1930s, when it was previously designated State Route 25A and later part of State Route 25.

Rachel is a census-designated place (CDP) in Lincoln County, Nevada, United States. As of the 2010 census it had a population of 54. As the closest settlement to the Nellis Air Force Range and Area 51, Rachel enjoys a modest celebrity status, particularly among aviation enthusiasts and UFO hunters.

Roswell is a city in, and the seat of, Chaves County in the U.S. state of New Mexico. Chaves County forms the entirety of the Roswell micropolitan area. As of the 2010 census it had a population of 48,411, making it the fifth-largest city in New Mexico. It is home of the New Mexico Military Institute (NMMI), founded in 1891. The city is also the location of an Eastern New Mexico University campus. Bitter Lake National Wildlife Refuge is located a few miles northeast of the city on the Pecos River. Bottomless Lakes State Park is located 12 miles (19 km) east of Roswell on US 380.

Space Aliens Grill & Bar is a small regional chain of outer space themed restaurants in the U.S. states of North Dakota and Minnesota. There are currently three locations. The company was founded in 1997 and is currently based in Bismarck, North Dakota.

Storm Area 51, They Can't Stop All of Us, also known as Area 51 Raid, was an American Facebook event and series of music festivals that took place on and around September 20, 2019, in the desert around Area 51, a United States Air Force (USAF) facility within the Nevada Test and Training Range.

Preliminary Assessment: Unidentified Aerial Phenomena, also known as the UAP Report and colloquially misnamed the Pentagon UFO Report, is a United States federally mandated assessment, prepared and published by the Office of the Director of National Intelligence on June 25, 2021, summarizing information regarding unidentified aerial phenomenon (UAPs) which include unidentified flying objects (UFOs). Substantial public attention had been given to the mandated June 25 report, fueled by statements by former high level officials in the U.S. government, including former president Barack Obama, who stated in June 2021 "...there's footage and records of objects in the skies, that we don't know exactly what they are."
The UFO Watchtower is an observation platform and campground north of Hooper, Colorado. The watchtower, which has a 360-degree view of the San Luis Valley, was created by Judy Messoline in May 2000 to capitalize on the existing use of the property by UFO observers.

Wright-Patterson Air Force Base (WPAFB) is a United States Air Force base and census-designated place just east of Dayton, Ohio, in Greene and Montgomery counties. It includes both Wright and Patterson Fields, which were originally Wilbur Wright Field and Fairfield Aviation General Supply Depot. Patterson Field is approximately 16 kilometres (10 mi) northeast of Dayton; Wright Field is approximately 8.0 kilometres (5 mi) northeast of Dayton.