As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Three symmetrical jets jutting out of interstellar object 3I/ATLAS are showing up in Hubble observations, puzzling astronomer ...

Discover why astronomers believe the interstellar comet 3I/ATLAS could be 14 billion years old and what Harvard's Avi Loeb ...

The long, quiet search for radio whispers from Comet 3I/ATLAS has finally paid off, and the result is as dramatic as the hype ...

The interstellar comet 3I/ATLAS has swung back into view after passing behind the Sun, and its return is proving even ...

A lucky gravitational lensing event finally let scientists weigh a homeless planet drifting alone through the Milky Way.

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

The maneuvers will be undertaken by SpaceX, the owner of the largest satellite fleet in orbit. About 4,400 of the company’s ...

Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.