WASHINGTON (Reuters) - Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond our solar system, revealing three layers like a wedding cake ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

The James Webb Space Telescope is turning distant exoplanets from anonymous dots of light into worlds with weather, chemistry, and sometimes even hints of clouds. By dissecting the faint starlight ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Data from the James Webb Space Telescope suggests that exoplanet TOI-561 b is surrounded by a thick atmosphere above a global magma ocean.

If aliens wrap their planets in potent greenhouse gases like we do, we'd be able to tell. That's according to a recent thought experiment in which scientists identified five "artificial" greenhouse ...

Earth plants could thrive under the light of an alien sun, according to a recent experiment. A team of astrobiologists planted garden cress seeds and cultured dishes of photosynthetic bacteria under ...

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form. When you purchase through links on our site, we may earn an affiliate commission.