Area 51

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Introduction & Top Questions References & Edit History Quick Facts & Related Topics

Images & Videos

Tested at Area 51

Area 51 conspiracy theories: Aliens in the United States?

The first stealth aircraft

The U-2 in flight

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Area 51 Gate

What Is Known (and Not Known) About Area 51

The United States Supreme Court building, Washington, D.C.

14 Questions About Government in the United States Answered

Image of Antenna galaxy

The Fermi Paradox: Where Are All the Aliens?

Bar graph of the United States Death Toll during major events. Infogram chart.

U.S. Death Toll During Major Events

Ufo, alien, space over trees.

Unidentified Flying Objects: What We Know

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Srinivasa Ramanujan, Indian mathematician and autodidact.

6 Interesting Facts about Srinivasa Ramanujan

Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society

The 10 Greatest Basketball Players of All Time

Town of Sisimiut located on the coast of the Davis Strait on Kangerluarsunnguaq Bay, Greenland

The Largest Islands in the World

Four year old boy with grandfather and father lighting Hanukkah menorah. Photo taken on: December 21st, 2009

Which Is Correct: Hanukkah or Chanukah?

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

Monitor. Varanus salvadorii is a monitor lizard found in New Guinea can grows to 2.7 metres (9 ft.) aka Tree crocodile, Crocodile monitor, Salvadori's monitor, artellia, reptile

7 of the World’s Most Dangerous Lizards and Turtles

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Area 51: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Did You Know?

U-2 planes, which flew over and around Area 51, could fly 20,000 feet higher than commercial planes, confusing many airplane pilots who saw them.
Area 51 had to be expanded because the OXCART, one of the planes tested there, took almost 200 miles to turn around because of its high speed.
Robert Lazar fabricated a story about working on alien technology at Area 51 in the late 1980s but was later revealed to be a fraud.
It all started in July 1947, with the headline on the front page of the Roswell Daily Record announcing, "RAAF Captures Flying Saucer On Ranch in Roswell Region"

Photos and Videos

Tested at Area 51

The first stealth aircraft

The U-2 in flight

Area 51 conspiracy theories: Aliens in the United States?

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