New videos of interstellar comet 3I ATLAS have ignited public interest. Online discussions suggest the comet might be ...

Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...

There are several frozen moons in our solar system, orbiting the gas giants. Some of them, despite having temperatures that would make Antarctica feel tropical, have liquid water under the surface.

When a faint green smudge appeared in images from a backyard telescope in Aguadilla, Puerto Rico, on Nov. 22, 2025, astronomers did not expect it to upend basic assumptions about how comets work. Yet ...

It was soon deduced that this is an interstellar comet, meaning it has come from another solar system. It’s only the third ...

The number 40,000 might not sound particularly dramatic, but it represents humanity's growing catalog of near-Earth asteroids ...

A clear look at the discovery of 40,000 near-Earth asteroids, how scientists track them, and the missions working to keep our ...

A single year is left in the long joruney of the two BepiColombo spacecraft as they try to reach planet Mercury for a truly ...

NASA will host a live event at 3 p.m., Wednesday, November 19, to share imagery of the interstellar comet 3I/ATLAS.

New telescope observations reveal structural features never documented in any known celestial object The morphology defies conventional understanding. The forward anti-tail persists where physics says ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

Discover NASA's latest images of the extraordinary interstellar comet 3I/ATLAS, the third comet from another star entering ...