The secretive Area 51 base is in which state?
AnswerNevada
Area 51 is in the Nevada desert.
Science · Facts & stats
UFO facts & stats
7 fact-checked facts about UFOs, sky-watching and the search for life beyond Earth, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which human-made objects are often seen as steady moving points of light at night?
AnswerSatellites
Satellites reflect sunlight and cross the sky in minutes.
Going deeper
What does SETI stand for?
AnswerSearch for Extraterrestrial Intelligence
SETI projects listen for signals from other civilizations.
What does the Drake equation estimate?
AnswerThe number of communicating civilizations in our galaxy
Frank Drake proposed it in 1961.
Which 1977 Steven Spielberg film features aliens and a five-note musical signal?
AnswerClose Encounters of the Third Kind
The five-note tune is how humans and aliens communicate in the film.
Expert level
Whose 1947 sighting near Mount Rainier helped popularize the term 'flying saucer'?
AnswerKenneth Arnold
Pilot Kenneth Arnold described objects moving like saucers skipping on water.
The US Air Force's Project Blue Book UFO study ended in which year?
Answer1969
Project Blue Book ran from 1952 until it closed in 1969.
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