3I/ATLAS came within 168 million miles of Earth around midnight CST Friday. While that might seem pretty far away, the ...

Even though these characters only appeared in a single episode of a "Star Trek" series, they left an unforgettable mark on ...

A faint, irradiated streak carved into nearby interstellar clouds is giving astronomers their clearest evidence yet that two ...

Voyager 1 has spent decades slipping into the dark between the stars, its radio whisper growing fainter with every year. Now ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

A full cabinet of marvelous costars includes Tommy Lee Jones, David Strathairn, James Spader, Hal Holbrook, Adam Driver, Lee Pace, Tim Blake Nelson, Joseph Gordon-Levitt, and Jackie Earle Haley, among ...

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 ...

The interstellar comet 3I/ATLAS will reach its closest point to Earth on December 19, giving astronomers a closer look at the mysterious visitor before it leaves our Solar System forever. The ...

Starlight and stardust are not enough to drive the powerful winds of giant stars, transporting the building blocks of life ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

For months now, astronomers have been closely watching the mysterious interstellar object 3I/ATLAS as it rips through the solar system at a breakneck velocity. And before it finally leaves us for good ...