Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

This NASA/ESA Hubble Space Telescope image features a glittering blue dwarf galaxy called Markarian 178 (Mrk 178). The galaxy ...

New NASA-backed research using the Chandra X-ray Observatory suggests many small galaxies may lack supermassive black holes, ...

The James Webb Space Telescope captured massive galaxy cluster RX J2129. located about 3.2 billion light-years away. A ...

The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its ...

The James Webb Space Telescope has captured an amazing view of interacting galaxies Arp 142. Arp 142 consists of a distorted ...

Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...

The discovery of a distant, well-structured spiral galaxy named Alaknanda has astounded scientists, revealing new insights ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.

December 15, 2025 - WASHINGTON — The U.S. Postal Service has announced the Priority Mail and Priority Mail Express stamps it will release in 2026. There will be additional stamp subjects to be ...

Astronomers usually detect black holes by looking for X-rays. When gas and dust fall toward a black hole, they heat up and ...

In July 2025, NASA detected an unusually long-lasting and intense gamma-ray burst (GRB) from deep space, the origin of which ...