A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.

The Chandra X-ray Observatory is the darling of high-energy astrophysics. Famed for providing unequaled x-ray views of ...

The results of our study provide the first solid evidence that globular clusters formed through multiple star-formation ...

From celestial fireworks caused by exploding stars to mesmerizing mosaics of distant nebulae, check out these 7 stunning ...

In what is the first discovery of an Einstein zig-zag lens in the universe, a team of international astronomers have sighted ...

A galaxy cluster bends light from seven background galaxies around it, letting astronomers peer into space and time ...

There is a region of the sky where astronomers fear to look. Filled with dark clouds of dust, it hides an unseen mass. A mass ...

Dark matter is an essential element of galaxy formation and physics, according to the standard theory of how the universe ...

More Black Holes Than Expected in the Early Universe Sep. 17 ... Dark Matter Flies Ahead of Normal Matter in Mega Galaxy Cluster Collision July 24, 2024 — Astronomers have untangled a messy ...

From the first deep-field image of the universe, to the stunning portrait of the 'Pillars of Creation', check out these 7 ...

JWST data challenges theory that dark matter aided early galaxy formation, as bright signals found instead of expected dim ...

The study of X-ray emission from astronomical objects reveals secrets about the universe at the largest and smallest spatial ...