NEW YORK - Astronomers announced on Monday that they had discovered what many consider the holy grail of their field: ripples in the fabric of space-time that are echoes of the massive expansion of the universe that took place just after the Big Bang.
CAPE CANAVERAL, Florida - Detailed maps of Mercury's cliffs and ditches show the solar system's innermost and smallest planet Mercury has lost much more real estate due to cooling over four billion years than scientists thought, according to a report published on Sunday.
WASHINGTON - U.S. scientists said on Thursday they have devised a potentially easier, cheaper and cleaner way to turn natural gas into usable fuels and chemicals - a discovery which could lead to natural gas products displacing oil products in the future.
FRANKFURT - The car industry's international patent filings jumped 18 percent in 2013, the World Intellectual Property Organization (WIPO) said on Thursday, in part reflecting a push for new technologies to lower exhaust emissions.
WASHINGTON - A dirty-looking, commercially worthless brown diamond found in Brazil is yielding priceless information about the composition of a layer deep inside our planet.
ALMATY - An American astronaut and two Russians who carried a Sochi Olympic torch into open space landed safely and on time on Tuesday in Kazakhstan, defying bad weather and ending their 166-day mission aboard the International Space Station (ISS).
WASHINGTON - The deadly threat posed by German submarines during World War One helped spur scientists to develop sonar, using underwater sound signals to locate objects like subs that might be taking aim with a torpedo.
Elephants can tell whether a human poses a threat by listening to his voice and sussing out subtle clues about his age, gender and ethnicity, according to a study released on Monday.
TOKYO/LONDON - A Japanese scientist called on Monday for his own headline-grabbing study on stem cells to be withdrawn from publication, saying its findings had now been thrown into too much doubt.
SYDNEY - It may sound like science fiction but an Australian team is working on a project to zap orbital debris with lasers from Earth to reduce the growing amount of space junk that threatens to knock out satellites with a "cascade of collisions".
NEW YORK - If the news last month that the prevalence of obesity among American preschoolers had plunged 43 percent in a decade sounded too good to be true, that's because it probably was, researchers say.