There are extraterrestrials among us. They landed four billion years ago when Earth was just forming. And they weren't ...

More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

New research suggests millions of unseen interstellar objects, some as big as the Statue of Liberty, could be trapped in the ...

Since its premiere, audiences have been enthralled with Christopher Nolan's visually spectacular and cognitively challenging ...

A study suggests over 1 million interstellar objects are hiding in the Oort Cloud, possibly from Alpha Centauri.

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

Could our solar system have been temporarily exposed to an enhanced flux of cosmic-rays at some point in the ancient past?

Scientists suggest binary pulsars could act as interstellar thrusters, allowing advanced civilizations to move stars and ...

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

When astronomers detected the first known interstellar object, 'Oumuamua, in 2017, it sparked a host of new studies trying to ...

The Alpha Centauri star system is approaching the sun. Two researchers have determined how many objects from there have ...