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For more than a decade, NASA’s NEOWISE telescope scanned the entire sky in infrared. Its primary mission was hunting for asteroids near Earth, but it kept recording everything else in its view: distant stars, quasars, and galaxies. When…

This gorgeous snap, taken by the Dark Energy Camera (DECam) mounted…

Imagine waking up, groggy and bearded, on a space ship light-years from Earth. That’s how Ryland Grace, played by Ryan Gosling, awakens in the new space drama Project Hail Mary. As the audience soon learns, Grace, a middle school science…

Astronomers are up in arms, protesting against a proposed constellation of tens of thousands of orbiting mirrors intended to reflect light onto ground-based solar power plants and SpaceX’s envisioned one million orbiting data centers.

The…