Comets usually fade quietly once they swing past the Sun. Interstellar comet 3I/ATLAS did not follow the same path. Instead, as it began to exit the solar system, it flared up dramatically. NASA’s ...

Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's attention in July 2025.

Launched on March 11, NASA's SPHEREx space observatory has spent the last six weeks undergoing checkouts, calibrations, and other activities to ensure it is working as it should. Now it's mapping the ...

NASA's SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) mission has mapped interstellar ice at an unprecedented scale. Covering regions in our ...

There's bad news to report on the clear skies front. A new paper, available as a preprint on arXiv from researchers at NASA's Ames Research Center in California, reports that 73.3 percent of images ...