A massive collision between two asteroid-sized bodies around a nearby star offers a rare look at the violent process of ...

NASA's Hubble Space Telescope has gotten a rare peek at the aftermath of two cosmic collisions — and helped scientists solve ...

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

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

The Calabash Nebula spans about 1.4 light-years and is named after the uneven shape of a calabash gourd. Its striking ...

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

Satellite streaks could spoil about one in three Hubble images, even when the telescope stays above Earth's weather.

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

Hubble images of interstellar object 3I/ATLAS reveal a sunward anti-tail, showing a teardrop-shaped coma with separated ...

During its 35 years of orbiting the Earth, the Hubble Space Telescope has transmitted endless streams of magnificent images, confirmed the existence of "dark matter," and helped track a vagabond black ...

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