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 ...

For spinning spheres, centrifugal force is maximized at the equator, where the rotational speed is highest. The amount of the ...

Astronomers using the James Webb Space Telescope have detected possible signs of gases released by volcanic activity on a ...

An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a sun-like star, ...