NASA scientists have firmly rejected claims by Harvard astronomer Avi Loeb that the interstellar comet 3I/Atlas may be a ...

This quiz invites you to chase comets through time and space, from ancient omens to modern scientific marvels.

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

"We were excited to see the growth of the tail, suggesting a change in the particles from the previous Gemini images." ...

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

Astronomers and students working together through a unique educational initiative have obtained a striking new image of the ...

Travel the universe from your seat with our picks from the annual ZWO Astronomy Photographer of the Year competition.

According to Dean Duffy, the new NASA administrator, a rock sample collected by the Perseverance rover was the "clearest sign ...

These breathtaking photographs are the winning entries of the 2025 ZWO Astronomy Photographer of the Year Awards.

A rare interstellar object, Comet 3I/Atlas, is hurtling through our solar system, igniting a scientific debate about its ...

Astrophysicist Avi Loeb, the former chairman of Harvard's Department of Astronomy and current head of Harvard's Galileo Project, which searches for ...

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet ...