A decade after a mysterious crater appeared in Siberia’s frozen ground, a team of Russian scientists braved subzero ...

The MeerKAT radio telescope detected hydroxyl radicals from interstellar object 3I/ATLAS, suggesting it's shedding a ton of ...

Astronomers have detected a mysterious cosmic 'heartbeat' repeating every 22 minutes, unlike any known celestial object.

Viral video of the 3I/ATLAS interstellar comet has reignited alien theories online, but scientists confirm the object’s ...

Interstellar object 3I/ATLAS is showing signs of "non-gravitational acceleration" as it reached its perihelion.

Scientists say 3I/Atlas came closest to Mars in October. Its path this month put it in the path of the warm rays of our sun, where a tail became more visible. The 3.5-mile solar object is traveling at ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

Astronomers revisiting 1950s Palomar Observatory sky photos found mysterious flashes—bright spots appearing in one frame and ...

The new explanation for a majority of the Red Planet’s dark streaks overturned earlier assumptions of water causing them, ...

According to experts, the object was likely the debris of an Elon Musk SpaceX Falcon 9 rocket which was launched from Florida ...

A popular UFO-reporting app has been making waves after reportedly recording tens of thousands of mysterious underwater objects up and down the United States’ coastlines, raising eyebrows and leaving ...