Flying high in the earth's atmosphere, where the air is thin, is, he says, rather like flying near the surface of Mars.

ECONOMIST: Planetary pretenders

The exhibit also features a console that gives visitors the feeling of flying around Mars and zooming in on its surface features, as well as a Mars terraforming game that runs on a multi-touch table.

MSN: Going Up! Lunar Elevator Highlights Museum's Space-Tech Exhibit - Technology & science - Tech and gadgets - TechNewsDaily | NBC News

Two German radar satellites are now flying in tight formation as they prepare to make the most detailed ever 3D map of the Earth's entire surface.

BBC: German radar satellites fly tight space waltz