Venus is the hottest planet in the solar system due to its thick carbon dioxide atmosphere, trapping heat as part of a ...

If you thought planets only circled stars in neat, flat disks, think again. Scientists have uncovered compelling evidence for ...

In a memorable image from the 1977 film "Star Wars," the young hero Luke Skywalker gazes at two suns setting above the ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

Mans Holmberg, a co-author of the study and a postdoctoral researcher at the Space Telescope Science Institute, told The ...

The James Webb Space Telescope spotted possible signatures for life in an exoplanet's atmosphere. Still, researchers caution ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

Using the James Webb Space Telescope, scientists say they found indications of potential life on K2-18b, a planet outside our solar system.

Carbon dioxide has been detected on a planet outside our solar system for the first time ... solar systems and see how they are similar to or different from ours. From there, we can try to ...