A relic from the beginning of the galaxy has finally come out of the sun's shadow. It gives us a rare look at a cosmic history that goes back before our own world. In November 2025, the interstellar ...

An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025. When you purchase through links on our ...

For one, it came down to timing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It came from outer space. Interstellar space, to be precise.

On Friday, the interstellar comet 3I/ATLAS makes its nearest approach to Earth, bringing the captivating alien visitor closer than ever before its exit from our Solar System. The comet, first spotted ...

Since its discovery, some people have speculated that interstellar visitor 3I/ATLAS could be alien technology. Harvard astrophysicist Avi Loeb points to its unusual trajectory and composition as ...

Something very significant has been happening in plain sight, and almost no one seems to be noticing. Over the past few years, there have been televised congressional hearings, repeated news segments ...

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS. When you purchase through links on our site, we may earn an affiliate ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

Comet 3I/ATLAS, only the third known object from interstellar space to pass through our solar system, is about to make its closest approach to Earth. On Friday, Dec. 19, it will come within about 170 ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...