The interstellar comet 3I/ATLAS has turned into a natural physics lab, and the Hubble Space Telescope is sitting in the front ...

Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with Earth and the Sun, passing within just 0.69 degrees of the Sun-Earth axis.

This cloud is a window into the dark Universe,” study co-author and Space Telescope Science Institute (STCScl) team member Andrew Fox said in a statement. “We know from theory that most of the mass in ...

Add Yahoo as a preferred source to see more of our stories on Google. NBC News' Gadi Schwartz reports on "3I/ATLAS," mysterious outer space object that is thought to be billions of years old, making ...

Astronomy is the study of stars, planets and the vast space beyond Earth. Every so often, scientists spot an event so unusual that it challenges what we think we know about the universe. Among ...

Since it was first spotted in early July, scientists have been fascinated by 3I/ATLAS — the third object in history to have been spotted cruising through our solar system from interstellar space. The ...

"This is a structure we've never seen before, so it could be a new class of dark object." ...

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

Scientists recently discovered a mysterious object in outer space that, for a time, was sending out regular bursts of energy in a way that researchers hadn't previously observed. According to an ...

Overlay of the infrared emission (black and white) with the radio emission (colour). The dark, low-mass object is located at ...