Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...

2026 will be another spectacular year for stargazers ...

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have for the first time identified hydrogen sulfide gas in the atmospheres of three gas-giant exoplanets orbiting HR 8799, a ...

NASA describes deep hydrogen compression that eventually forms conductive metallic liquid, making Jupiter feel less like Earth and more like a continuous gradient of states. That alone breaks the old ...

INSIDE THIS REPORT The discovery did not arrive with spectacle. It arrived in spectral lines—quiet, technical, and unmistakable. NASA’s SPHEREx telescope has now detected organic molecules streaming ...

The atmospheres of exoplanets have been a focal point of the field lately, with the James Webb Space Telescope taking a look at as many as it can manage. But time on the world's most powerful space ...

New measurements show Jupiter is slightly smaller and flatter, improving models of its interior and atmosphere.

February may be the shortest month of the year, but it is packed with celestial events, according to a new skywatching update from NASA.

The telescope primarily detects light in the infrared in order to observe sources such as the first galaxies and protostars.

The James Webb Space Telescope has detected the first-ever spectral signature of hydrogen sulfide around a massive gas giant planet.

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Now researchers think they've solved the mystery of one of the longest star-dimming events ever recorded. The star, called ASASSN-24fw, may have disappeared behind a giant planet with an enormous ...