Physics
How far could you travel in a spaceship?
An astronaut could reach the edge of the cosmos and return 鈥� as long as they know when to slam on the brakes
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Too much radiation for astronauts to make it to Mars
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Space
NASA faces ‘Kennedy or Nixon’ moment, former chief says
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Space
Flying Armadillo has the power to escape the moon
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Space
Mock lunar landers set to compete for $1 million prize
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Life
Mighty Mouse takes off 鈥� thanks to magnets
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Space
Space robot 2.0: Smarter than the average rover
Features
Space
Astronauts could reach Mars in 2020s, panel says
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Space
Cargo spaceship meets the catcher in the sky
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Space
Giant crystals and spherical flames: science in microgravity
The International Space Station may still be under construction, but microgravity research has been under way for decades. We round up some of the coolest experiments so far
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Space
One partner stumbles in lunar probe pas de deux
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Space
India’s first lunar probe fails after less than a year
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Space
Why future astronauts may be sent to ‘gravity holes’
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Space
The still life of space tools
Books & Arts