New satellite images reveal the "runaway" collapse of an ice shelf seven times the size of Manhattan.

A recent interstellar explosion was so bright that it could briefly be seen unaided—from 7.5 billion light-years away.

A 70-year-old tortoise gives birth, a sandstorm blankets Beijing, Indians celebrate spring in living color, and more.

Heavy rains pummeled the U.S. Midwest and South this week, killing several people and forcing evacuations—and it's not over yet.

The Iraq National Museum—which saw many of its ancient treasures looted following the 2003 U.S-led invasion—will not reopen to the public after renovations are complete, officials announced.

A season of wacky winter weather, from snow in China to balmy beach temperatures in Britain, has little to do with global warming, experts say.

The tiny yellow-green bird with a lilting song is thought to be endangered in its island habitat of Sulawesi, biologists say.

The artist may have helped illustrate the only known copy of a legendary Renaissance chess treatise.

Wild weather batters the United Kingdom, an imperial palace reopens in Rome, Brazilians fight police with bows and arrows, and more.

From the bright lights of Tokyo to the slums of Mumbai, see how the rapid urbanization predicted by a new UN report is affecting world population.

The flashy-looking frog hadn't been seen in 14 years, until scientists "rediscovered" it last month in the mountains of Colombia.

A large hole in the skull of an 1,800-year-old skeleton found in Greece is believed to be rare evidence of ancient—and failed—brain surgery.

Feared extinct in parts of West Africa, the mysterious pygmy hippopotamus has recently been photographed in the war-ravaged forests of Liberia.

See the evidence for a new theory of tiny humans—and the stunning South Pacific setting where it was found.

See the earliest known photo of Helen Keller and Anne Sullivan, Uncle Sam in a sad state, a groundbreaking space image, and more.