NASA's SPHEREx telescope begins mapping the entire sky

NASA has begun taking 3,600 unique images each day to create a new map of the cosmos with its newly-launched SPHEREx ...

Chandra catalog now contains 1.3 million X-ray detections across the sky

Like a recording artist who has had a long career, NASA's Chandra X-ray Observatory has a "back catalog" of cosmic recordings ...

First sky map from NASA's SPHEREx observatory

NASA's SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, 2025. This image features a selection of colors emitted primarily by stars ...