Six people have sealed themselves inside a white vinyl dome in Hawaii to embark on an eight-month test of how their mental health might fare during a mission to Mars.
The NASA-funded project, the longest US Mars simulation yet, involves three men and three women who have no access to fresh food and limited access to Internet that requires 20-minute intervals between click and response, as it might be in deep space.Full Story
A woman and child wear masks on a polluted day in Beijing on October 20, 2014
European Union leaders agreed Friday what they hailed as the world's most ambitious climate change targets for 2030, paving the way for a new U.N.-backed global treaty next year.Full Story
Every year in spring, Australians are seen wearing bicycle helmets with spikes on top or caps that have images of eyes on their back. The colorful head gear is not a fashion statement.
Instead, it protects wearers from the swooping magpie, a quintessentially Australian experience where the bird flies low, clacking its beak and sometimes drawing blood by pecking the head of a human victim.Full Story
China launched an experimental spacecraft Friday to fly around the moon and back to Earth in preparation for the country's first unmanned return trip to the lunar surface.
The eight-day program is a test run for a 2017 mission that aims to have a Chinese spacecraft land on the moon, retrieve samples and return to Earth. That would make burgeoning space power China only the third country after the United States and Russia to have carried out such a mission.Full Story
Japan could be nearly destroyed by a massive volcanic eruption over the next century, putting almost all of the country's 127 million-strong population at risk, according to a new study.
"It is not an overstatement to say that a colossal volcanic eruption would leave Japan extinct as a country," Kobe University earth sciences professor Yoshiyuki Tatsumi and associate professor Keiko Suzuki said in a study publicly released on Wednesday.Full Story
Spacewalking astronauts doubled as trash men Wednesday, heaving an old science experiment and two antennas overboard at the International Space Station.
It was the third spacewalk in as many weeks outside the orbiting lab. This time, it was on the Russian side of the house and went so well that it wrapped up more than two hours early.Full Story
Federal forecasters say a brief but strong solar flare Wednesday morning temporarily blacked out a few radio communication systems before weakening.
Space Weather Prediction Center forecaster Christopher Balch said it affected radio that uses part of the upper atmosphere. That includes some radar and plane systems, but not all, and amateur radio.Full Story
Scientists claim to have unraveled the oldest DNA ever retrieved from a Homo sapiens bone, a feat that sheds light on modern humans' colonization of the planet.
A femur found by chance on the banks of a west Siberian river in 2008 is that of a man who died around 45,000 years ago, they said.Full Story
Nearly 50 years ago, scientists found bones of two large, powerful dinosaur arms in Mongolia and figured they had discovered a fearsome critter with killer claws.
Now scientists have found the rest of the dinosaur and have new descriptions for it: goofy and weird.Full Story
North Americans, get set for the fourth and final eclipse of the year.
On Thursday, most of North America will have prime viewing of a partial solar eclipse. The new moon will hide part of the sun from view. The eclipse will unfold slowly following its start near the Kamchatka Peninsula in far eastern Russia.Full Story