Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

Astronomers have discovered an additional 100 new worlds in data collected by NASA's exoplanet-hunting spacecraft TESS, ...

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

Rocky, the adorable alien creature in Project Hail Mary, lives in relatively close proximity to the home world of an iconic ...

Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

A former NASA developer has analyzed 1950 photographic plates showing nine unexplained objects in Earth's orbit, years before ...