Prehistoric humans not wiped out by comet, say researchers
Comet explosions did not end the prehistoric human culture, known as Clovis, in North America 13,000 years ago, according to research published in the journal...
Nanodiamonds are forever: Did comet collision leave layer of nanodiamonds across Earth?
Most of North America's megafauna -- mastodons, short-faced bears, giant ground sloths, saber-toothed cats and American camels and horses -- disappeared close to 13,000 years...
Early growth of giant galaxy, just 3 billion years after the Big Bang, revealed
Astronomers have for the first time gotten a glimpse of the earliest stages of massive galaxy construction. The building site, dubbed "Sparky," is a developing...
Scientists grow an organ in an animal from cells created in lab
Laboratory-grown replacement organs have moved a step closer with the completion of a new study. Scientists have grown a fully functional organ from transplanted laboratory-created...
A NEW PLANET
An international team of astronomers has discovered a planet slightly larger than Jupiter that orbits a star 500 light years from Earth. A super-duper telescope...
China’s Wall Less Great In View from Space
It has become a space-based myth. The Great Wall of China, frequently billed as the only man-made object visible from space, generally isn't, at least...