There are also exoplanets with extremely varied sizes. Some are much larger than Jupiter, which is already a giant in our ...

NASA has found “the clearest sign yet” that life once existed on Mars, the agency announced on Wednesday.

Conservative critics of renewable energy keep claiming that solar and wind are useless at night and during calm skies. That’s ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

The latest images of comet 3I/ATLAS are in, delivering a glorious view of the interstellar object's burgeoning tail, courtesy ...

The cosmos is a vast and fascinating expanse, filled with curiosities. Meteorites, remnants of this cosmic expanse, hurtle ...

To celebrate the magazine’s anniversary, we’re revisiting some of our favorite past cover stories and celebrity quotes.

We already knew that interstellar comet 3I/ATLAS was different from the other two interstellar objects known to have ...

From sculptural “wind trees” to massive offshore walls of rotors. Six strange turbine designs pushing the boundaries of ...

The study also explained a long-standing puzzle as to why electrons often appear delayed after solar eruptions.

NASA's planet-hunting TESS telescope observed the rare interstellar comet 3I/ATLAS two months before it was formally ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...