NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into one dazzling mosaic. Half a year after first opening its eyes to the cosmos, NASA 's SPHEREx spacecraft has unveiled its first complete, all-sky mosaic of the universe.

NASA astronauts are preparing for two spacewalks to complete tasks outside the International Space Station. Here's what we know about the mission.

Spacecraft are assembled in specialized “cleanrooms” that are designed to avoid contamination from dust and microorganisms. But bacteria called extremophiles have genetic components that allow them to survive in extreme environments, and 26 of them have been found at NASA’s Kennedy Space Center in Florida.

NASA has postponed a spacewalk at the International Space Station after a crew member experienced a medical concern.

Scientists discover 26 new bacterial species in NASA cleanrooms, revealing surprisingly resilient microbes with potential uses in biotechnology and medicine.

The fight over NASA science funding has swung from existential alarm to cautious optimism in a matter of months. What once looked like a near-death experience for some of the agency’s most important missions now appears more like a close call,