Earth
Telltale chemistry could betray ET
Alien life may be hard to find because it's fundamentally unlike that on Earth – but a tendency to chemically alter its environment may give it away
News
Space
Solar eclipse to ring in new year
News
Space
Did ‘Martian’ methane signal come from Earth?
News
Life
Don’t send bugs to Mars
Opinion
Space
Giant ice volcano may have been found on Titan
News
Space
Geminid meteors set to dazzle
News
Space
Probe fails to orbit Venus and flies into space
News
Space
Saturn’s strange propellers show how planets are born
Features
Space
Space debris may cause mysterious ball lightning
News
Space
Experiment casts doubt on origins of lunar water
The mystery of how the moon got its surface water has just got deeper, following the failure to replicate the mechanism that supposedly produces it
News
Life
Hardy bugs could survive a million years on Mars
News
Space
Comet caught throwing basketball-sized snowballs
News
Space
Former ‘tenth planet’ may be smaller than Pluto
News
Space
LCROSS mission may have struck silver on the moon
News