Astronomer Avi Loeb suggests that a quasi-satellite may be the "relic of an interplanetary mission by humanity from the 1960s ...

Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object screaming into our solar system from far beyond. Now, as the BBC reports, new observations by the Gemini South ...

New telescope images show that the interstellar comet 3I/ATLAS is shooting a giant jet of gas and dust toward the sun. This ...

"When you put it into context, Punctum is astonishingly bright." A bewilderingly powerful mystery object found in a nearby galaxy and only visible so far in millimeter radio wavelengths could be a ...

Astronomers have discovered a strange new object that behaves unlike any observed before. The hope is that the source will provide some much-needed insight into the origin of mysterious cosmic signals ...

A newly released video captured by a U.S. reaper drone shows a glowing orb off the coast of Yemen. Then in the video, a Hellfire missile suddenly struck the unidentified object and bounced off it. Rep ...