TEOTIHUACAN, Mexico - A Mexican archeologist hunting for a royal tomb in a deep, dark tunnel beneath a towering pre-Aztec pyramid has made a discovery that may have brought him a step closer: liquid mercury.
WASHINGTON - Deep beneath Yellowstone National Park, one of the world's most dynamic volcanic systems, lies an enormous, previously unknown reservoir of hot, partly molten rock big enough to fill up the Grand Canyon 11 times, scientists say.
LONDON - Formula One's cutting-edge aerodynamic technology is moving into the supermarket chill cabinet.
NEW YORK - Biologists in China reported carrying out the first experiment to alter the DNA of human embryos, igniting an outcry from scientists who warn against altering the human genome in a way that could last for generations.
CAPE CANAVERAL, Fla. - NASA on Thursday marked the silver anniversary of the Hubble Space Telescope with fireworks, of a celestial kind, conveyed by the orbiting observatory itself. | Video
WASHINGTON - The most complete genetic information assembled on woolly mammoths is providing insight into their demise, revealing they suffered two population crashes before a final, severely inbred group succumbed on an Arctic Ocean island.
LONDON, ENGLAND, UNITED KINGDOM, APRIL 20, 2015 - A British entrepreneur has designed what he calls 'the safest bike in history' and hopes its manufacture could help those currently reluctant to cycle, due to safety concerns, to get in the saddle. | Video
WASHINGTON - For extinct creatures like dinosaurs known only from fossils, it is notoriously difficult to differentiate the males from the females of a species because sex distinctions are rarely obvious from the skeletons.
MOSCOW - Russia is cutting spending on its space program by more than a third over the next 10 years because of the country's economic crisis, forcing it to scrap plans to develop a super-heavy launch rocket.
Palo Alto, California, United States - Amanda Stowers is beating up on her drone as her professor watches on with glee. It may seem cruel but it's all in the name of science. No matter how hard or how many times Amanda hits the drones' wing, it always recovers and keeps on flapping. | Video
- Washington Governor Jay Inslee on Friday signed a bill that will overhaul the state's medical marijuana market, reconciling the long unregulated system with the voter-approved recreational pot industry.