NASA study will help identify potentially habitable planets
Stars must emit just enough near-infrared light to prevent the loss of oceans.
A huge solar flare temporarily knocked out GPS communications
The sun did its biggest burp in 12 years.
NASA wants your origami ideas for its spacecraft radiation shield
The shield will protect future spacefarers from developing deadly diseases due to radiation.
Mars astronauts at greater risk of cancer than previously thought
Cosmic rays are much more of a threat than expected.
Earth's radio signals may be protecting it from space radiation
Take that, Van Allen belts
Study says Fukushima region is safe enough for people to return
Radiation levels might not pose a long-term threat in key areas.
After Math: Keep pace in the space race
If the radiation doesn't kill you, the off-world potatoes just might.
NASA proposes guarding Mars' atmosphere with a magnetic shield
It could protect explorers and restore some of the planet's water.
Moon mission will test an anti-radiation vest for astronauts
The shield could be vital to future Mars landings.