Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

Instead, scientists are looking into existing spacecraft already in orbit around other planets. Harvard Professor Avi Loeb ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

A mysterious interstellar object named 3I/ATLAS is racing through our solar system at incredible speed — and scientists are ...

A new clue that the interstellar object is not natural has emerged in images taken by a NASA telescope.

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star.

The Hubble Space Telescope has captured detailed images of comet 3I-Atlas, an interstellar object passing through our solar ...

A team of astronomers has taken the sharpest-ever picture of the unexpected interstellar comet 3I/ATLAS using the crisp ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

A Harvard astronomer explained why an unidentified object detected this summer could potentially be an alien spacecraft.Avi Loeb, the chair of the university's astronomy department, appeared Thursday ...

Yet NASA - and other experts - do not share his concerns and maintain 3I/ATLAS is simply an interstellar comet, thought to be around 7 miles (11.2 kilometers) wide. The US space agency has been ...