Topics

Theory of Relativity in Space

Albert Einstein's theory of relativity explains how space and time are linked.
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Meteors, Shooting Stars and Fireballs

Meteors, also known as shooting stars, are pieces of dust and debris from space that burn up in Earth's atmosphere, where they can create a bright streak across the night sky.
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UFOs and Extraterrestrials

UFOs, or Unidentified Flying Objects, and extraterrestrials are perennial favorites in science fiction, but to date there have been no confirmed encounters on Earth.
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Asteroids

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Comets: News on Sightings, Missions and Encounters

See news, images and videos about comets, icy wanderers in the solar system.
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Latest News About Uranus, Seventh Planet from the Sun

Uranus is the seventh planet from the sun and the third-largest planet in the solar system.
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Apollo Program

NASA's Apollo Program consisted of 17 missions in the 1960s and 1970s to send the first humans to the moon. The program used the mighty Saturn V rocket to launch three astronauts into on Apollo spacecraft.
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Multiverse

Scientists speculate that ours might not be the only universe out there — we might instead live in a "multiverse".
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NASA

NASA is the federal space agency run by the United States to oversee American space exploration, research and technology.
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Big Bang Theory

Big Bang theory is the leading explanation for how our universe began.
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