Asteroid 2004 BL86 will pass Earth by a range of 745,000 miles on 26 January.
Hatch opened to US segment while wearing protective masks but no traces of ammonia found.
MIT scientists say meteors played less of a role in planetary formation than once believed.
Much of Britain has been turned into a winter wonderland, with roads and fields blanketed with snow.
Researchers now think the Neolithic Hongshan culture is the source of Chinese civilisation.
Acceleration of global sea level "significantly larger" than scientists predicted.
Queen Mary study shows testing for bovine tuberculosis is more effective than badger cull.
Blind woman Fiona Gameson says she calls her ability to see with echoes her 'bat sense'.
Nasa confirms all crew are safe after suspected toxic leak on ISS.
JAXA is studying roundworms on the International Space Station to help cure bone and muscle diseases.
Lava has been gushing from fissures north of Iceland's largest glacier for five months.
BREAKING: Astronauts on board International Space Station 'safe' after being evacuated.
The snake can jump five metres and disappear suddenly, says the biologist who spotted it.
Genes exchanged in a horizontal transfer during reproduction makes each strain unique.
Around 1700 sq km of land around protected areas has been lost to gold mining in a decade
Study looks at adaptive significance of zebras and tests the theories about them.
Study of Makushi people shows how men want relationships based on 'supply and demand'.
Motorists warned to take care driving due to "treacherous conditions" in coming days
The Amazon Tall Tower Observatory is 325m high, making it taller than the Eiffel Tower.
SpaceX CEO Elon Musk plans a human colony on Mars assisted through commercial satellite production.
Slaughtering tools from 2.5 million years ago aided evolution of human communication.
UK Space Agency announces mystery conference about Beagle 2 Mars probe.
Dogs rolling over during play is a combat manoeuvre used before launching an attack.
Amazing photos of workers catching fish inside a flooded abandoned shopping centre in Bangkok.
Human bias towards larger animals has misconstrued true size of many sea beasts.
Increase in infection by flatworms in the Holocene period is being linked to sea level rise similar to that seen today.
One degree of rise in temperature locally will cut wheat production by 6%.
The service module of China's unmanned test lunar orbiter successfully entered an eight-hour orbit around the moon, state media reported.
SpaceX mission deemed a success despite failure of launcher to land on floating touchpad
Using big data to mine Facebook Likes can predict a person's psychological traits better than humans.