But Mir's last crew returned to earth in July following Moscow's decision to scrap the space station to concentrate its resources on the new International Space Station.

BBC: UK will spy Mir in night sky

Geothermal systems gather energy present beneath the earth's surface, where the temperature averages 55 degrees (higher in Texas, lower in North Dakota), and concentrate it to provide space heating.

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You know better than anyone that kids need time and space to run around before they can settle down and concentrate in a classroom.

WHITEHOUSE: The First Lady Speaks on the HealthierUS School Challenge

The Canadian Space Agency lent Finarelli a desk in its Washington office, where she will concentrate on drumming up more funds from government sources, corporations and graduates.

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