Scientists were surprised to note that 3I/ATLAS brightened much faster than they anticipated during its perihelion last week.

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

Keck II telescope observations of interstellar object 3I/ATLAS found "evidence for a puzzling anti-tail extension" pointing ...

Our cosmos seems, at times, like one impossibly vast factory, just pumping out mysteries. The deeper we peer, the more we learn – but each new discovery stirs up a plethora of new puzzles to solve, ...

Ghost particles' can zoom through you without a trace. Scientists are getting to the bottom of this cosmic mystery ...

"Oh my God, oh my God!" Karagussova could be heard exclaiming as they reached space. She and her crewmates had dubbed ...

People from Portglenone in County Antrim to County Kildare in the Republic of Ireland took to the internet to comment on the ...

High above Earth, an object drifts in orbit that should never return home. Its origin is mysterious, its purpose debated, and ...

Interstellar object 3I/ATLAS is fueling debate after its unusual behaviour prompted the International Asteroid Warning ...

It’s not a bird, nor a plane, nor Superman. At first glance, the burning hunk of metal discovered in Western Australia’s ...

"Mine workers on a remote road near Newman stopped around 2 p.m. Saturday after spotting flames coming from a strange ...

Two new papers delve into mysterious lights and objects that were observed in the sky years before the first satellite ...