A rocky planet nearly 50 light-years away appears to be airless, dark, and covered in volcanic or weathered rock, according to new observations from the James Webb Space Telescope. This is the first ...

A new study explains why carbon dioxide is cooling the upper atmosphere, even as it is warming Earth’s surface.

Add Yahoo as a preferred source to see more of our stories on Google. A photo of Jupiter taken by NASA's Juno spacecraft in September 2023. NASA/JPL-Caltech/SwRI/MSSS ...

A new study using data from NASA’s Spitzer Space Telescope provides a rare glimpse of conditions on the surface of a rocky planet orbiting a star beyond the Sun. The study, published today in the ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Bizarre Venus surface formations (or coronae) are likely key to understanding our twin planet's heretofore inscrutable ...

A team of scientists estimates that there may be enough water, trapped in tiny cracks and pores of rock in the middle of the Martian crust, to fill oceans on the planet’s surface. The groundwater ...

New research suggests Mars could have enough water under its surface to form a global ocean. On Monday, scientists released their findings, which are based on seismic measurements captured from NASA’s ...

When people imagine humanity’s future beyond Earth, Mars is usually the first destination that comes to mind. It is close, ...