Space

Hubble solves a galaxy puzzle in the constellation of Centaurus

Vesta's black patches reveal carbon-rich asteroid impacts

Our galaxy contains 100 billion planets

Desert meteorite shows signs of wetter Mars

NASA eyes space trash for radiation shields

Robot hedgehogs could explore Martian moon

Young stars and planets grow up together

Cosmic radiation puts astronauts at risk of Alzheimer's

New Curiosity Rover badge on Foursquare