Mars show home goes on display in London

A show home with features to help its residents survive life on Mars went on display in London on Thursday, offering visitors a glimpse of what setting up house on the red planet could look like if it ever happens. Set in a mocked-up Martian landscape at the Royal Observatory Greenwich, the pod-like construction has room for a bed and a computer desk and space to grow plants and exercise. It was designed in consultation with astronomers at the observatory and Stephen Petranek, author of "How We'