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

Arp 282: This image from the NASA/ESA Hubble Space Telescope feels incredibly three-dimensional for a piece of deep-space ...

This Hubble image shows part of planetary nebula Caldwell 2 (NGC 40). Gas is expanding from the central star, which is at the ...

Now, though, using an instrument called the Dark Energy Spectroscopic Instrument or DESI, scientists have discovered a trove ...

Astronomers using the Hubble Space Telescope (HST) have studied one of the largest young star clusters in our galaxy, ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Compared to their more isolated counterparts, the galaxies in galaxy clusters are often distorted by the gravitational pull ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.

Scientists have discovered the largest known structure in the universe, a massive superstructure named Quipu. This enormous cosmic formation weighs an astonishing 200 quadrillion times the mass of the ...

A galaxy in the distance, was tightly encircled by a halo of light—also known as an Einstein Ring, a result of gravitational ...