Spacecraft will descend on red planet carrying helicopter and instruments to look for biosignatures
Several missions this year are seeking out life on the red planet. But would we recognize extraterrestrials if we found them?
Tiny piece of meteorite from London’s Natural History Museum will be used by rover exploring red planet
Discovery has major implications for hunt for alien life on the red planet as it means any evidence is likely to be buried deep underground
Not since the 1960s have we witnessed such appetite for space missions. Here’s what to expect in the year ahead, from commercial launches to Chinese ambitions