Helheim was the Norse realm of the dead, but ancient mythology reveals a surprising truth about what awaited its souls.

Left to explore a world of blocks and rocks, AI agents discovered new tricks, created their own rules, and showed measurable ...

Renewable energy is expanding faster than expected, yet fossil fuel emissions keep rising as the UN warns of worsening ...

A vast archive of children's unexplained memories reveals a surprising pattern involving violent deaths, forgotten identities, and birth intervals.

An ancient Alaskan campsite has yielded thousands of relics, raising new questions about America's earliest settlers.

Fungi have already devastated wildlife worldwide. Now scientists are uncovering why the human body's natural defenses may be losing their edge.

A quiet Kansas cemetery became infamous for a rumored gateway to hell, but the story behind its reputation runs deeper.

Mars has a way of deceiving scientists. Fresh observations suggest an unexpected force is behind some of its most intriguing ...

America's underwater missile giants are disappearing, leaving behind a firepower crisis the Navy cannot ignore.

A Roman sarcophagus at Westminster Abbey held an unexpected skeleton, and new evidence reveals a centuries-old mystery.

A giant asteroid spins at a speed that should tear a loose rocky body apart, leaving scientists with a puzzling mystery.

Coast redwoods have endured millions of years of climate change. Now, researchers have identified a biological weakness that ...