In 2017, astronomers made an unprecedented discovery: the first interstellar object ever confirmed to visit our solar ...

Professor Avi Loeb, a theoretical physicist and cosmologist from Harvard University, told MailOnline why he thinks a new ...

A recently discovered interstellar object, 3I/ATLAS, could potentially be the oldest comet ever observed, predating our solar ...

Scientists determine if an object is interstellar by computing its trajectory and observing its speed, as demonstrated with the recently discovered 3I/Atlas.

Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.

Astronomers have found evidence of a "bizarre interstellar object" that could be an alien spacecraft. The major space breakthrough, dubbed 3I/ATLAS, was spotted travelling from another star to our sun ...

Whether you’re into alternate realities, time loop mind-benders or eerie glimpses of the future, there are tons of gems on the platform to dig into. Here are three of the best sci-fi movies on Prime ...

In summer, we face toward the Milky Way's hub in the Teapot constellation, home to the galaxy's supermassive black hole.

A newly discovered object from deep space may be the oldest comet ever observed—possibly more than 7 billion years old, and ...

I/Atlas was first spotted on July 1 by the Asteroid Terrestrial-impact Last Alert System (Atlas) survey telescope in Río ...