Physicist Michio Kaku says interstellar object 3I/ATLAS may reveal signs of intelligent life if it gains energy near the Sun.

Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?

NASA and ESA say 3I/ATLAS poses no threat to Earth. We explain its nickel-heavy readings, IAWN’s training drill, and why the Harvard alien claim lacks proof.

UN launches a global planetary-defence campaign as interstellar comet 3I/ATLAS speeds past Earth, sparking both scientific ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet ...

A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.

The comet-like object Chiron has been caught in the process of forming new rings, which could help us understand how these ...

Astronomer Gianluca Masi and his Virtual Telescope Project will host a special livestream on Oct. 24 beginning at 1:30 p.m.

The asteroid, now named 2025 TF, flew over Antarctica on October 1, at exactly 00:47:26 UTC. This incident was more ...

Asteroid 2025 TP5, discovered just two days before its approach, will fly past Earth on October 15 at a dangerously close ...

Asteroid 2025 TF flew past Earth at an altitude similar to that of the International Space Station, but was not spotted by astronomers until hours after it was gone. Photo courtesy European Space ...

Oct. 8 (UPI) --International space agencies say an asteroid zipped by Earth closer than a large number of satellites currently in orbit, but was not detected until hours later. The European Space ...