Space junk littering orbit; might need cleaning up
Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up.
Climate models make too hot forecasts of global warming
Data from NASA's Terra satellite shows that when the climate warms, Earth's atmosphere is apparently more efficient at releasing energy to space than models used to forecast climate change have been programmed to "believe."
Researchers use cellphone data to construct population density maps
Researchers show how far South American cities moved in quake
The massive magnitude 8.8 earthquake that struck the west coast of Chile last month moved the entire city of Concepcion at least 10 feet to the west, and shifted other parts of South America as far apart as ...
Unusual gamma-ray flash may have come from star being eaten by massive black hole
A bright flash of gamma rays observed March 28 by the Swift satellite may have been the death rattle of a star falling into a massive black hole and being ripped apart, according to a team of astronomers led ...
Archaeologist uses computers and satellite images to search for early human settlements
A Harvard archaeologist has dramatically simplified the process of finding early human settlements by using computers to scour satellite images for the tell-tale clues of human habitation, and in the process uncovered thousands ...
Lost medieval city found in Cambodia
A lost medieval city that thrived on a mist-shrouded Cambodian mountain 1,200 years ago has been discovered by archaeologists using revolutionary airborne laser technology, a report said.
Star's 'cry' heralds new era for testing relativity
(Phys.org) -- Last year, astronomers discovered a quiescent black hole in a distant galaxy that erupted after shredding and consuming a passing star. Now researchers have identified a distinctive X-ray signal ...
Scientist discovers plate tectonics on Mars
(Phys.org) -- For years, many scientists had thought that plate tectonics existed nowhere in our solar system but on Earth. Now, a UCLA scientist has discovered that the geological phenomenon, which involves ...
Stronger, more frequent tropical cyclones ahead, research says
The world typically sees about 90 tropical cyclones a year, but that number could increase dramatically in the next century due to global warming, a US scientist said Monday.
'Ferrari of space' set to fall to Earth
A science satellite dubbed the "Ferrari of space" for its sleek, finned looks will shortly run out of fuel and fall to Earth after a successful mission, the European Space Agency (ESA) says.
Arctic ice shrinking in volume, too, ESA reports
Arctic sea ice, which has been declining in area by unprecedented amounts in summer, is also falling in volume, the European Space Agency (ESA) said on Wednesday.
Space debris problem now urgent, scientists say
Governments must start working urgently to remove orbital debris, which could become a catastrophic problem for satellites a few decades from now, a space science conference heard on Thursday.
Diet secrets of 'the Royals' -- Elephant tail hair isotopes show cattle out-munch pachyderms
Two weeks after the rains begin, an elephant family named "the Royals" usually switches to a grass diet to bulk up for pregnancy and birth. But when they wandered off their African reserve one rainy season, ...