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

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 ...

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

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

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

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 ...

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

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