The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, ...

New data shrank the odds that this asteroid will hit Earth, but astronomers will continue to study it. Here’s what you need ...

Explore the astonishing findings from the Webb Telescope on the restless black hole Sagittarius A* at the Milky Way's center.

Astronomers using the JWST have observed Sagittarius A* continuously flaring, reshaping our understanding of black holes.

The Asteroid Terrestrial-impact Last Alert System, or ATLAS, telescope in Rio Hurtado, Chile, first discovered 2024 YR4 on ...

On December 25, 2021, the largest and most powerful space telescope, the James Webb Space Telescope, was launched into space ...

The chances of asteroid 2024 YR4 colliding with Earth in 2032 hit a record high. Experts expect the risk percentage to fluctuate before likely dropping to zero. Here’s why.

The article discusses various science and space news, including President Trump's job cuts affecting sectors like space ...

NASA first discovered “2024 YR4,” the 130-to-300-foot-wide asteroid, in December 2024, and found it only had roughly a 1 ...

Two weeks ago, when Ars first wrote about the asteroid, designated 2024 YR4, NASA's Center for Near Earth Object Studies ...

The James Webb Space Telescope has shown that the Milky Way’s black hole is constantly blazing with light, releasing long ...