In 2017, we spotted our first ever visitor from another star system: 'Oumuamua. This bizarre object moved at impossible speeds, had a strange cigar shape, and behaved like nothing in our solar system.

A comet from another star system is due to make its closest—and final—approach to Earth this week before it continues on its journey back toward interstellar space. Interstellar Comet 3I/ATLAS will ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as 3I/Atlas will pass within ...

New images captured by the European Space Agency (ESA) of the interstellar comet 3I/ATLAS has "surprised" the agency's Jupiter Icy Moons Explorer (JUICE) team as they saw the "very clearly visible ...

The Hubble Space Telescope and the Jupiter Icy Moons Explorer have captured fresh images of an interstellar comet as the object nears its closest approach to Earth later this month. Comet 3I/ATLAS has ...

As another interstellar visitor approaches Earth, we look back at ʻOumuamua — the first of its kind and one of greatest modern mysteries of astronomy. Grandfather, 3-month-old granddaughter dead after ...

Interstellar objects like 3I/ATLAS are most likely to enter our solar system from two specific directions, a new study suggests. What does it mean for Earth? When you purchase through links on our ...

Biomimetic marching robot brings Christopher Nolan's "Interstellar" to life If you want to build an actual HAL 9000, all you need is an LED, some carpentry skills, and any laptop accessing a talking ...

Despite some similarities and speculation, the new comet likely originated from our solar system's Oort Cloud and is not directly connected to 3I/ATLAS. The comet will make its closest approach to ...

An addiction treatment center in Milwaukee, First Step Community Recovery Center, will close at the end of 2025. The closure is due to funding cuts in the 2026 Milwaukee County budget, which was ...

Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...

We know of three interstellar objects (ISO) that have visited our inner solar system. Oumuamua was the first one, and it came and went in 2017. 2l/Borisov, an interstellar comet, was next, appearing ...