The 13th day of the 18th annual Space Telescope Advent Calendar features part of a dense cluster of galaxies—a wide variety ...

"The natural question that comes up is: how many more space telescopes will be affected when all these constellations are ...

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

It uses your phone’s sensors, GPS data, and object catalogs to help you align, locate, and track targets with minimal ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

The final milestone in construction was reached on November 25, as technicians carefully joined the giant telescope's inner ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...

Webb’s sharper vision has revealed many disk-shaped galaxies from the early universe, and now, a small but growing number of true spiral galaxies — including Alaknanda — far earlier than predicted by ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...