One half of the powerful new Nancy Grace Roman Space Telescope passed major milestone tests, demonstrating space readiness.

Travel back 390 million years after the big bang to the ancient Maisie's Galaxy in this stunning 3D visualization that ...

NASA's James Webb Space Telescope has confirmed that crystalline water ice exists in the debris disk surrounding HD 181327, a ...

Crystalline water ice has been found in a dusty debris disk that orbits a Sun-like star, only 23 million years old, 155 light ...

Water ice is a crucial building block of planetary systems. We've found plenty of it in our own Solar System, in places like ...

The mystery of how planets and icy objects formed in the farthest reaches of our solar system just took an exciting turn. A ...

Astronomers didn’t even know sub-Neptunes existed until NASA’s Kepler mission uncovered them over the past decade. Although a ...

NASA has identified a massive asteroid, designated 2003 MH4, that is expected to make a close approach to Earth on May 24.

The James Webb Space Telescope (JWST) has unveiled some of the most breathtaking images of the cosmos, capturing the beauty ...

The James Webb Space Telescope and the ground-based Keck Observatory have detected clouds on Titan, revealing active methane ...

JWST uncovers unexpected behavior in polar lights on Jupiter, while a Mars rover captures the first image of an aurora.

A glass bead retrieved by China's Chang'e-5 lunar mission is offering a glimpse into the moon's hidden interior and violent past. Witness live views of Earth from the International Space Station as it ...