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Radiation poses manned Mars dilemma
20:26 UK time, Thursday, 30 May 2013
Nasa's Curiosity rover confirms what everyone has long suspected - that astronauts on a Mars mission would get a big dose of damaging radiation.
23 April 2013
Last updated at 12:19 ET
Space shuttle makes final landing
The Atlantis shuttle lands at the Kennedy Space Center in Florida, bringing a close to Nasa's 30-year orbiter programme.
Our Expert
From BBC Science
The space shuttle
A guide to Nasa's famous spacecraft
Shuttle's final mission highlights
Shuttle lift-off: The ride of your life
A look inside Nasa's space shuttle
Shuttle prepares for final flight
Discovery crew on her retirement
50 years of Nasa space travelThe final flight in numbers
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135 missions 33 for Atlantis
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355 astronauts taken into space since 1981
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The fleet has flown well over 870 000 000 km
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The shuttle and its boosters have 2.5 million moving parts
- Figures assume Atlantis completes mission
Background
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'Magnificent flying machine'
'The shuttle made possible the permanent presence of humans in space'
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The shuttle's successors
We detail five of the possible successors to the shuttle
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Disaster
The Challenger disaster was both a tragedy and profoundly shocking
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Bittersweet stories
How space fans are blogging farewell to an era
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The new space race
Newsnight's Science editor Susan Watts visits the world's first fully commercial spaceport
