Within an 11-year period after that, 12 of our citizens walked on the lunar surface and 6 of their crew companions orbited the body.

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Russia's Vesti TV news says the Yuri Dolgoruky's escape capsule can accommodate the whole crew and float to the surface in an emergency.

BBC: New Russian nuclear sub 'safer than Kursk'

The timer could also be used with the rendezvous back-up charts to ensure the LM could join the CSM in lunar orbit after the crew launched from the lunar surface.

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Sometimes the crew needs to dig out the damaged road surface before filling begins.

BBC: Jetpatchers at work

Oceaneering leases the machines to oil companies, including BP, but sends its own crew to drive the complicated robots from boats on the surface of the water.

CNN: John D. Sutter

The caving crew descends through tight passages hundreds of feet beneath the Earth's surface, guided by the gust of air that marks the cave's primary passage.

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