An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...

A newly discovered comet named C/2025 V1, which some have compared to 3I/ATLAS, is due to make its closest approach to Earth on Tuesday, Nov. 11.

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system ...

The comet is on what’s known as a hyperbolic trajectory, which means that it doesn’t follow an orbital path around the sun.

Newly discovered comet C/2025 V1 (Borisov), which has some minor similarities to 3I/ATLAS, will make its closest approach to ...

From the frozen edges of our solar system to the blazing light of Alpha Centauri, this episode explores humanity’s first real steps toward the stars. Discover how we could one day cross the vast gulf ...

Comet 3I/ATLAS, which made a close approach to the sun, has prompted lots of public interest. Kim Kardashian asked NASA's Sean Duffy to spill the "tea" ...

Astronomers directly imaged a faint companion star orbiting Betelgeuse, solving a decades-old mystery about its strange ...

Potential impactors are most likely to have low velocities and the highest likelihood of hitting Earth during the winter.

The path of comet 3I/ATLAS through the solar system has been predicted with an accuracy 10 times greater than previous ...