Space scientists seeking to understand the enigmatic origins of powerful cosmic rays have detected an extremely rare, ultra-high-energy particle that they believe traveled to Earth from beyond the ...

Astronomers have detected enormous shockwaves rattling the cosmic web that connects all galaxies in the universe, offering vital clues on how the largest structures in space were shaped.

The Hercules-Corona Borealis Great Wall is a so-called "supercluster" of galaxies; it's a filament of the cosmic web around which the first galaxies in the universe gathered and grew.Its name was ...

In the dark realms of space, about 14,700 light-years away, an unusual object is doing something unexpected. And it's leaving scientists scratching their heads.

That is because, as part of the Cosmic Web, these basins of attraction could reveal how galaxies like the Milky Way came together in larger gatherings and, thus, how the 13.8-billion-year-old ...

Alas, further analysis of the cosmic web and detailed images of the cosmic microwave background—the afterglow light pattern generated when our Universe transitioned from a plasma to a neutral ...

Space is growing emptier one star at a time. That's because 80 billion lightyears from Earth, three cosmic beasts are eating stars the size of ten suns.

When it makes its nearest pass, the 1,100-foot-wide (335-meter-wide) asteroid will be within 24,000 miles (38,625 kilometers) of our planet’s surface—roughly ten times closer than the Moon’s ...

The cosmos is riddled with evidence that the universe began with an exotic, unfathomably rapid expansion, but scientists don't know why it happened. NASA JPL's SPHEREx mission will seek answers to ...

In Porphyrion’s day, this cosmic web was half the size it is now; such jets would have been big enough to affect the overall web, striking deep into the voids and depositing energy and heat there.

An ultra-high-energy cosmic ray carries tens of millions of times more energy than any human-made particle accelerator such as the Large Hadron Collider, the most powerful accelerator ever built ...