Live Science feed Why do nuclear bombs form mushroom clouds? Here's why nuclear bomb explosions lead to a mushroom-shape cloud.... Steven Weinberg, Nobel Prize-winning physicist, has died The physicist unified two of the four fundamental forces.... Asteroid the size of the Great Pyramid of Giza to fly (safely) by Earth Sunday An asteroid about as long as the Great Pyramid of Giza is tall will make a "close" approach with Earth on Sunday (July 25), according to NASA calculations.... How early was the novel coronavirus circulating? In late December 2019, the Wuhan Municipal Health Commission reported cases of an unidentified viral pneumonia, which, along with other reports, alerted the World Health Organization (WHO) to a potential new health threat that was identified as a coronavirus in January 2020 and was later named SARS-CoV-2. ... Boy's bright-yellow tongue was a sign of rare disorder An autoimmune disorder was the culprit.... What would happen if Earth suddenly stopped spinning? If Earth abruptly stopped spinning, what would happen to everything on it?... What is a superconductor? A superconductor is a material that achieves superconductivity— a state of matter that has no electrical resistance and does not allow magnetic fields to penetrate.... Wildfire smoke spreads across US in striking images from space NASA has released striking satellite images of wildfire smoke clouds covering vast swaths of the U.S., from the West Coast all the way to the Atlantic Ocean.... We may finally know why the delta variant of coronavirus is so infectious People infected with the delta variant of the novel coronavirus may be carrying more than a thousand times more virus particles, according to an early new study.... China to activate world's first 'clean' nuclear reactor in September Plans for thorium reactors have been around since the 1940s, but Chinese scientists believe they are finally close to creating a working prototype.... Older posts