Interstellar Technologies ZERO rocket engine test-fired at Hokkaido Spaceport in Taiki, Hokkaido. It is fueled by liquid ...

The Manhattan-size interstellar object 3I/ATLAS will buzz past Mars this week — making its closest pass to any planet on its route as scientists are rushing to coordinate craft to observe the ...

Astronomers assemble! Here's your chance to help make better predictions. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A newly found ...

Reaching Alpha Centauri within a single human lifetime has long sounded like science fiction, yet a new generation of nuclear pulse concepts is forcing that timeline into serious discussion. The idea ...

Even as a brilliant, naked-eye comet slices through Earth's sky (cheers, Comet Lemmon!), the most famous object in the solar system right now is hidden on the far side of the sun: the interstellar ...

Interstellar space is unforgivingly vast, but the emptiness has some advantages. The lack of atmosphere means there is no aerodynamic drag.

Darryl Z. Seligman is an Assistant Professor of Physics and Astronomy at Michigan State University. Comet 3I/ATLAS is the third large interstellar visitor that we have ever discovered —- an asteroid ...

(THE CONVERSATION) On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the ...