The interstellar object 3I/ATLAS is expected to make its closest approach to Earth mere days from now, coming within just 167 ...

The Hubble Space Telescope has captured an amazing view of galaxies LEDA 48062 and UGC 8603. Credit: ESA/Hubble & NASA, R.

Interstellar Comet 3I/ATLAS makes its closest, safe approach to Earth on Dec. 19. Learn how this rare visitor reveals secrets ...

The Hubble Space Telescope has been used to study 25 hot Jupiters. It has helped to answer "questions important to our ...

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

Interstellar comet 3I/ATLAS is coming nearest to Earth on December 19, and astronomers are eager to welcome it as a Christmas ...

Discovered over the summer, the comet known as 3I/Atlas will pass within 167 million miles of our planet on Friday. That's as ...

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. Interstellar ...

NASA's Hubble Space Telescope captured an uncommon sight—the death of a low-mass star—in this image of the Calabash Nebula ...

The 15th day of the 18th annual Space Telescope Advent Calendar shows a colorful view of a dense cloud of gas and dust, ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

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 ...