Sunrise and sunset • Rises at 7:31 a.m. and sets at 5:59 p.m. on the 1st (daylight saving time) • Rises at 7:03 a.m. and sets ...

A class of University of Texas astronomy students has discovered that nearby dwarf galaxy Segue-1 seems to host a supermassive black hole.

About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for ...

The James Webb Space Telescope has looked back into deep time to find “rubies” or “little red dots” stretched across the universe.

Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside our solar system, according to NASA.<br /><br />The comet is travelling on ...

I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly 7-mile-wide (11 kilometers) comet zooming at more than 130,000 mph (210,000 ...

A rare cosmic visitor, 3I/ATLAS, the third confirmed interstellar object, was discovered in July 2025. This object, on a ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

NASA joins the Roman space telescope and key instruments, marking a milestone toward its 2027 launch to reveal the cosmos.

The Hubble Space Telescope was originally expected to last about 15 years in orbit, before its optical surfaces became too ...

NASA's Hubble Space Telescope explores the evolution of spiral galaxy UGC 10043 through images taken 23 years apart, in 2000 ...