Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

There were schools of thought in Ancient Greece that speculated about extraterrestrial life, in trying to answer questions ...

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If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help understand where to look for it.

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

Finding alien life in the universe just got way more likely, according to groundbreaking study ...

From the physical world to the biological universe: Democritus to Lowell -- Plurality of worlds and the decline of anthropocentrism -- Life in the solar system: the limits of observation -- Planetary ...