AXIS, the Advanced X-ray Imaging Satellite, was one of two concepts selected for detailed design studies in NASA’s Astrophysics Probe Explorer program, competing alongside the f

According to the space agency's tracking, the rock is hurtling through space at more than 21,500 miles per hour.

Webb has captured the haunting “Exposed Cranium” nebula—an otherworldly cloud shaped by a dying star that looks remarkably like a brain inside a skull.

Mission Control will be packed with experts, specialists and flight directors around-the-clock as NASA takes on its most complicated mission in more than half a century.

One of NASA’s spacecraft could reenter the atmosphere at approximately 7:45 P.M. EDT tonight. When the 600-kilogram Van Allen Probe A reenters Earth’s atmosphere, it will largely burn up, but there

This reentry is notable because it poses a higher risk to the public than the US government typically allows. The risk of harm coming to anyone on Earth is still low, approximately 1 in 4,200, but it exceeds the government standard of a 1 in 10,000 chance of an uncontrolled reentry causing a casualty.

NASA's DART mission, which tested a planetary defense strategy, successfully changed the orbit of the asteroid Dimorphos in 2022. The mission also unexpectedly altered the orbit of Dimorphos's larger companion, Didymos, around the sun. This marks the first ...

Images captured in late 2022 by the DART spacecraft — an experiment that tested asteroid-deflection technology — moments before it deliberately struck the asteroid moon Dimorp