Explore the UFO mysteries J. Allen Hynek uncovered with Project Blue Book and how his findings challenged the Air Force's ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

For a long time, it was thought that this [technique] required telescopes in space,” says John Mather, the Nobel ...

Designed to hunt for new alien worlds, NASA's Transiting Exoplanet Survey Satellite (TESS) has serendipitously observed the ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

Looking at images of the sky taken before the first satellite was launched, one team believes they may have found objects ...

Well, one NASA scientist certainly seems to think there's a chance. Ivo Busko, a retired NASA developer who worked at the ...

This artistic illustration shows the TRAPPIST-1 red dwarf star system, home to seven Earth-sized exoplanets, several of which lie within the star’s habitable zone. In the foreground is TRAPPIST-1 b, ...

Cue the curiosity surrounding extraterrestrial life. The U.S. Department of Homeland Security has registered two new federal domains, including Alien.gov and Aliens.gov, though the websites aren't ...

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Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond our planet. Reading time 3 minutes In humanity’s search for life beyond Earth ...

Two newly registered federal website domains – Alien.gov and Aliens.gov – are drawing attention after records showed they were created this week by a U.S. government agency, fueling speculation as ...