"Excessive secrecy has led to grave misdeeds against loyal civil servants, military personnel and the public — all to hide ...

The goal of the Parker Solar Probe mission is to investigate the mysteries of the sun's corona, its outer atmosphere. What ...

Hollywood has made a cottage industry out of imagining biological space aliens, but if intelligent life is out there it’s ...

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

American space agency NASA says it has begun installing the telescope assembly in the space observatory that will become ...

Scientists using observations from NASA’s Neil Gehrels Swift Observatory have discovered, for the first time, the signal from ...

A group of international astronomers have discovered three mysterious, ultra-massive galaxies in the early universe. The ...

“We have a top-notch telescope that is well aligned and has great optical performance at the cold temperatures in space,” ...

If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...

NASA's Roman Space Telescope has received its Optical Telescope Assembly, paving the way for its mission to explore the ...

Encounter Blew Away Most of Smaller Galaxy's Gaseous Halo In a dramatic tale of survival captured by the Hubble Space ...

Astronomers have used the James Webb Space Telescope to observe three early ultra-massive galaxies, formed shortly after the ...