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.

In the search for life elsewhere in the universe, scientists have traditionally looked for planets with liquid water at their surface. But, rather than flowing as oceans and rivers, much of a planet's ...

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 ...

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 ...

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 ...

As astronomers have begun to gather data on the atmospheres of planets, we're learning about their compositions and evolution. Thick atmospheres are the easiest to study, but these same thick ...

Astronomers, using the James Webb Space Telescope (JWST), have for the first time directly studied the surface of a rocky exoplanet, peering across the cosmos to analyze a super-Earth named LHS 3844 b ...

(CNN) — Data from a retired NASA mission has revealed evidence of an underground reservoir of water deep beneath the surface of Mars, according to new research. A team of scientists estimates that ...

The small craft will seek to prove that powered, controlled flight is possible on another planet. But just getting it onto the surface of Mars will take a whole lot of ingenuity. NASA’s Ingenuity Mars ...

The BepiColombo spacecraft flew past Mercury for the fifth time last week, revealing the planet in mid-infrared light for the first time. The images revealed details of the temperature and composition ...