The motion of 3I/ATLAS that helped trace its trajectory revealed a non-gravitational acceleration, which revealed the size of the comet.

When 3I/ATLAS was first spotted a few months ago, it seemed to emit a reddish color. But earlier this month, some astronomers ...

Harvard scientist Loeb says comet-like 3I/ATLAS is far larger than expected and could offer clues about alien technology.

I nterstellar comet 3I/ATLAS is about to vanish from view. Earth and this interstellar interloper will be on opposite sides ...

Harvard scientist Avi Loeb, who has made headlines for his theories about interstellar objects, says we are "probably not" ...

However, a series of groundbreaking technologies are now knocking on the door of interstellar travel, injecting fiery hope ...

Our solar system sits inside what astronomers call the Local Hot Bubble, a region about 300 light-years wide filled with very ...

The total mass loss rate and outflow speed from its 3I/Atlas surface was used to infer its mass. The mass of 3I/ATLAS must be ...

TARS, named after the robot from the 2014 film "Interstellar," could potentially be a way to travel to other stars. TARS requires no fusion reactors, no gigawatt laser — and not even a chemical rocket ...

In 2016 billionaire Yuri Milner hosted a press conference at One World Observatory, the atrium topping the slick skyscraper ...

A British-built space instrument has officially launched aboard NASA’s Interstellar Mapping and Acceleration Probe (IMAP) ...