Elite women, perhaps princesses, played a crucial role in holding the Xiongnu, one of the first nomadic empires of the eastern Eurasian Steppe, together, a new study suggests. The Xiongnu, who may have been among the ancient ancestors of the Mongols, formed a confederation of nomadic peoples who controlled much of Central Asia, from present-day … Read more
The Vikings are remembered as fierce fighters, but even these mighty warriors were no match for climate change. Scientists recently found that ice sheet growth and sea level rise led to massive coastal flooding that inundated Norse farms and ultimately drove the Vikings out of Greenland in the 15th century. The Vikings first established a … Read more
The asteroid that wiped out the dinosaurs did not trigger a long-lasting impact winter, scientists have found — a discovery that raises new questions about what happened on Earth just after it hit. One spring day 66 million years ago, a 6-mile-wide (10 kilometers) asteroid smashed into the Yucatán Peninsula and upended life on Earth. … Read more
An ethereal whirlpool of light recently appeared in the night sky above Alaska, briefly stealing the limelight from a strong auroral display. But the bizarre, spiral-shaped object had nothing to do with the dancing polar lights. Instead, the luminous vortex was just the latest example of what astronomers have nicknamed “SpaceX spirals,” which are becoming … Read more
Gravity can turn itself into light, but only if space-time behaves in just the right way, a research team has found. Under normal circumstances, you cannot get something from nothing. Specifically, the Standard Model of particle physics, the reigning theory that explains the subatomic zoo of particles, usually forbids the transformation of massless particles into … Read more
Human beings can generate false memories of events mere seconds after they have occurred, a new study has found. The phenomenon, which researchers have dubbed “short-term memory illusions,” shows how easily and rapidly humans reimagine experiences to fit our preconceptions, rather than accurately recording what takes place. The researchers published their findings April 5 in … Read more
From the creepiest Cambrian critters to massive marine reptiles, wonderfully weird sea creatures have inhabited our oceans for over half a billion years. We’ve put together a list of 25 of the strangest ancient sea monsters ever to have lived, all of which went extinct long before humans came along. The only reason we know … Read more
Sixty million years ago, when the Eurasian plate slammed into the Indian plate, a mountain range was born. Because these plates were of similar density, neither could sink below the other. The rocks had nowhere to go but up. Now, the Himalayas host Earth’s tallest mountains. Mount Everest is the tallest, towering 5.4 miles (8.8 … Read more
After 65 years of lunar exploration, the United States is finally going to put its first autonomous rover on the moon. But this mission won’t be helmed by NASA engineers — instead, it is the brainchild of a dedicated group of college students. The Iris rover was developed by students, faculty and alumni at Carnegie Mellon … Read more
The guy who bought Twitter wants to have a city of a million people on Mars by 2050. That may sound astronomically ambitious considering humans have never set foot on the Martian surface. But is it feasible? How long would it take for humans to colonize another planet? And could it ever be possible for … Read more
