The exoplanet K2-18b is generating headlines because researchers announced what could be evidence of life on the planet. The ...

The world's most famous telescope is celebrating in style with new views of Mars, nebulas and a galaxy that reminds us of home.

In celebration of 35 years spent in orbit around Earth, the Hubble team has released a set of four new images showing the ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

The Hubble Space Telescope launched on April 24, 1990, aboard the Space Shuttle Discovery (STS-31), and deployed into Earth ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

"Any claim of life on another planet requires a lot of justification, and I don't think we're there yet, Måns Holmberg, a ...

Space science at NASA is on the chopping block.

(THE CONVERSATION) A team of astronomers announced on April 16, 2025, that in the process of studying a planet around another star, they had found evidence for an unexpected atmospheric gas. On Earth, ...

The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, confirming a theory about the formation of our solar system.

Scientists have found strong signs of possible life on exoplanet K2-18b, a potential "Hycean world," suggesting new avenues in the search for alien life.

Astronomers have made a detection suggesting biosignatures, or signs of biological activity, on an exoplanet located 124 ...