Top Space Facts

The Mystery of the Black Knight Satellite

There's a mysterious satellite of unknown origin that's orbiting Earth. Dubbed the Black Knight Satellite, astronomers have been reporting strange radio signals allegedly coming from the satellite since the 1930s - before NASA or the Soviet Union put satellites into space.

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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.

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In the year 1054 AD, there was an explosion in the sky so bright that it was visible for 23 days straight, even during the day.

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In 1977, researchers detected a strong and unusual radio signal from space that lasted 72 seconds. It hasn't been detected since.

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Apollo 17 astronaut Gene Cernan, the last man to walk on the Moon, wrote his daughter's initials there. They’ll last at least 50,000 years.

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In 1910, as Earth passed through the tail of Halley's Comet, people bought "Anti-Comet Pills", special "comet umbrellas", and gas masks, because there was public hysteria that all life on Earth would be destroyed by gas - called cyanogen - that was detected in the tail.

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When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.

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In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.

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