If you feel a thrill every time we discover something new about the cosmos, then November 25th may have been a noteworthy day ...

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

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 ...

NASA's Nancy Grace Roman Space Telescope is now fully assembled and ready to begin launch preparations this summer.

NASA’s James Webb Telescope discovers the oldest supernova ever seen, offering insights into early universe star formation ...

The discovery of two remarkable substellar companions orbiting distant stars has been announced by an international team of ...

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories ...

Starlink is growing fast, and SpaceX has filed paperwork for as many as 42,000 satellites. Others such as OneWeb, Amazon, ...

A telescope in Chile has captured a stunning new image of the Butterfly Nebula, a grand and graceful cosmic wonder.

CAPE CANAVERAL, Fla. (AP) — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years of the universe. At double the width of our ...

A telescope in Chile has captured a breathtaking new image of a planetary nebula that resembles a graceful cosmic butterfly. The stunning picture, released by the National Science Foundation's NOIRLab ...