In 2017 astronomers detected something extraordinary: the first known object from another star system passing through our solar system. Named ‘Oumuamua, this mysterious visitor traveled at incredible ...

A new study by the SETI Institute suggests that the alien signals might be right here, surrounding us all of the time, and we're just unable to pick them out.

A BOOZY comet has stunned scientists after they discovered the ‘alien’ rock is filled with alcohol. The mysterious interstellar comet is “bursting” with the substance like ...

Astronomers have spotted something unusual in a comet passing through our Solar System. 3I/ATLAS, only the third confirmed interstellar visitor ever s.

A startup called Reflect Orbital wants to send thousands of mirrors up into space to bounce sunlight to the dark side of the planet. NBC News’ Tom Costello speaks to the CEO Ben Nowack on how he plans ...

Interstellar Comet 3I/ATLAS is the gift that keeps on giving. A snapshot of the space that lies beyond the solar system, it brings clues to other stars, other worlds and the galaxy we call home. Just ...

The comet formed in a cold and distant part of the early Milky Way up to 12 billion years ago, putting it just under 2 billion years the age of the universe.

What can a piece of debris from another star tell astronomers about planets they may never see directly? The answer has changed dramatically since the first confirmed object from another star crossed ...

A visitor from another star system is creating excitement in the astronomy community. The comet 3I/ATLAS which was first spotted in July 2025 contains chemical clues that scientists can use to ...

New data indicates Comet 3I/ATLAS is second only to C/2016 R2 in terms of methanol levels ever recorded in a comet within our solar system.