Tunnels and blobs of carbon-rich minerals on meteorite suggest microbial weathering, study says.
Beautiful pictures recorded by Nasa's Solar Dynamics Observatory.
Study shows climate change causes high extinction risk for turtles, salamanders, snakes and lizards.
Images shot from space reveal dramatic decline in snow cover in Sierra Nevada.
UFO Sightings Daily author Scott Waring thinks there is life on Mercury.
NuSTAR lets astronomers view the core of an exploding star.
Researchers say asteroids are 150,000 times more powerful than atomic bombs
Astronomer at SETI says humans may come into contact with the extraterrestrials in 25 years.
Toyota to settle US criminal probe into disclosure of customers' complaints.
Dynamic Earth wins 2013 International Science & Engineering Visualisation Challenge.
Mystery surrounds mission of X-37B drone which has been in orbit for more than 400 days.
Mike Hopkins and Rick Mastracchio share fitness tips from space.
Nasa scientists looking at carbon-rich meteorites that contain molecules used to make DNA.
Scientist Rhawn Joseph files lawsuit urging Nasa to examine mystery rock more closely.
A recent graphic of Earth released by Nasa shows the intensity of global warming from 1950 to 2013.
Five Nasa Earth science missions to be launched for first time in a decade.
Water is present in the form of vapour which scientists say may have originated from ice-geysers on its surface.
A huge Bizarre Moon base identified on Google Moon Viewer
Unexplained appearance of doughnut-sized rock recorded by Opportunity probe.
Rosetta ready for rendezvous after three years in hibernation.
Scientists examine huge primitive galaxy extending 55,000 light years.
More toxic pollutant to enter food chain as a result of cracking sea ice off Alaskan coast.