Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...