Pulsars are ultra-dense, rapidly spinning, and highly magnetized remnants of dead stars. They act like cosmic lighthouses, ...

Astronomers have finally cracked a decades-old mystery about red giant stars—how material from their deep interiors makes its ...

The decades since scientists confirmed the first planet around another star have been rich in discovery, but it’s rare to see ...

Mars’ rotation is speeding up slightly, but enough for scientists to notice. A new study suggests the cause could be a ...

New measurements from the Blue Ghost lander suggest that thin crust, not just radioactive heating, shaped the moon’s dark ...

Astronomers using NASA’s Chandra X-ray Observatory have uncovered a striking shift in how supermassive black holes grow, ...

A nearby galaxy is behaving strangely—and now scientists know why. The Small Magellanic Cloud’s stars move in chaotic ...

Astronomers have an answer for a long-running mystery in astrophysics: Why is there much less growth of supermassive black holes today than in the past?

A series of viral social media posts drew attention to an old cosmological theory-that our universe began from a collision ...

The oxygen in a galaxy does not sit still. It spreads, thins out, piles up, and leaves behind a record of where stars formed, ...

Astronomers have an answer for a long-running mystery in astrophysics: Why is there much less growth of supermassive black holes today than in the ...