In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the solar system. These ...

A new image has revealed the clearest glimpse yet of an interstellar visitor zipping through our solar system. Video above: Astronomers discover how planets form The Hubble Telescope and its Wide ...

Last month, astronomers made an exciting discovery, observing an interstellar object — only the third of its kind ever ...

Interstellar object 3I/ATLAS — which is zooming through our inner solar system — appears to be emitting its own light, ...

The mysterious object named 3I/ATLAS that came from outside our solar system and is hurtling towards the sun, has once again ...

An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard ...

A Harvard astronomer is suggesting that an interstellar object nearing Earth could be an engineered object — rather than a ...

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space ...

NASA has shared new details about 3I/ATLAS. It is an interstellar object moving at 209,000 km/h. Hubble images show it is ...

That strange interstellar object flying by us may, according to one outlandish astronomer, have been sent by aliens to see ...

U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...