The Kepler spacecraft has lost the secong of four wheels that control the telescope's orientation in space.
The fact that CO2 levels have hit 400 ppm comes as no surprise to scientists who have watched the number steadily climb since around 1780, the start of the Industrial Revolution.
The outpost's commander calls the situation serious, but not life-threatening.
Archaeologists say they have discovered the location of a small frontier fort that was the site of a violent Revolutionary War gunbattle.
The Solar Impulse -- considered the world's most-advanced sun-powered plane -- left Moffett Field in Mountain View near San Francisco just after dawn Friday.
Google Fiber offers a network that strings fiber optic lines to homes and supplies commercial strength Internet hookups at home consumer rates.
The images were captured by the Cassini Space Probe
Virgin Galactic's passenger spaceship has made its first powered test flight.
Google is trying to upstage Siri, the sometimes droll assistant that answers questions and helps people manage their lives on Apple's iPhone and iPad.
The operators of the Hubble Space Telescope say the orbiting observatory has snapped photos of an approaching comet.
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