A mysterious object was seen on SpaceX's livestream of its Starship rocket on Monday. Many viewers suggested it was a UFO, ...

NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

There might be alien life on a nearby moon, scientists say - Saturn’s companion Enceladus has long been a particularly ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

3I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more than ten times higher than any solar system comet. The James Webb Space ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

Microscopic bits of alien tech on the moon? As scientists searched for intelligent extraterrestrial life — i.e., aliens — they’ve focused on a short list of standard possibilities. In other words, ...

The Very Large Array is a collection of 27 radio antennas located near Socorro, New Mexico. Each antenna in the array measures 82 feet (25 m) in diameter and weighs about 507,000 pounds (230 metric ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...