Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers from the University of California, Irvine (UCI) and ...

"It was just a matter of time before we found them." ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most ...

Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it there anyway ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

The idea was that as an alien civilization advances, its technology becomes too sophisticated for us to detect. We could ...

The first picture of a planet outside our solar system may actually depict a swirl of space dust, a new study suggests.

Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

Thirty years ago this week, two Swiss astronomers announced that they had spotted the first known planet orbiting a Sun-like star. The Nobel-winning discovery, later published in the pages of Nature, ...

NASA has confirmed 6,000 exoplanets, marking a major milestone in humanity’s quest to understand other worlds. From gas giants hugging their stars to planets covered in lava or clouds of gemstones, ...

A new theory from a scientist working with NASA, raises a surprising question about extraterrestrial life and why they might ...