The interstellar comet 3I/ATLAS is racing away from the sun. Hubble and JWST track the object's strange composition: high CO2 ...

For the first time, astronomers have captured the brilliance of a superluminous supernova via gravitational lensing.

Zoom into the James Webb Space Telescope's view of a star-forming region in the Small Magellanic Cloud known as NGC 346.

A captivating new image captured by the Hubble Space Telescope reveals fascinating details about a rare galaxy,Markarian 178 ...

I/ATLAS attracted attention when it was confirmed to be only the third body originating from another star system.

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

New gravitational lensing measurements by the TDCOSMO Collaboration support the Hubble Tension, confirming differences between Early and Late Universe Hubble Constant values using updated ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

Interstellar comet 3I/ATLAS is making its closest approach to Earth, sparking a fierce debate. Harvard's Avi Loeb argues its ...

Using its most sensitive X-ray camera, the European Photon Imaging Camera (EPIC)-pn, XMM-Newton captured the comet glowing in ...

Harvard's Avi Loeb argues the 3I/ATLAS anti-tail defies solar physics, suggesting the interstellar visitor is not a comet but ...