While most traders and investors still believe a debt-limit-hike agreement will be reached before the U.S. government defaults on its payments, the market place is becoming more jittery as the self-imposed August 2 deadline approaches for lawmakers.

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While most traders and investors still believe a debt-limit-hike agreement will be reached before the U.S. government defaults on its payments, the market place is now becoming a bit more jittery as the self-imposed August 2 deadline approaches for lawmakers.

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The Stanford study suggests that men have less need to self-monitor and use both masculine and feminine approaches.

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These activities could include demonstrations of new robots, inflatable modules in which to live or grow food ("greenhouses"), new life-support technologies, radiation protection systems, communications and sensor technologies, novel telemedicine approaches - anything that would be needed by astronauts on a self-sufficient mission far from Earth.

BBC: Manned flight around Moon considered