Environment

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An Orbital Sciences Corporation Antares rocket sits on the launch pad at NASA's Wallops Flight Facility in Wallops Island, Va. at sunrise on Wednesday, Jan. 8, 2014. On Wednesday, Orbital Sciences Corp. decided to cancel the scheduled launch to the International Space Station due to an unusually high level of space radiation from a solar flare that might interfere with electronic equipment in the rocket. (AP Photo/NASA, Bill Ingalls) MANDATORY CREDIT: NASA, BILL INGALLS

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In this Tuesday, Jan. 7, 2014 image made available by NASA, a giant cloud of solar particles, a coronal mass ejection, explodes off the sun, lower right, captured by the European Space Agency and NASA's Solar and Heliospheric Observatory. The sun is obscured to show the atmosphere around it. The solar flare caused the cancellation of a launch to the International Space Station on Wednesday, Jan. 8, 2014. (AP Photo/ESA, NASA - SOHO)

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FILE - This May 23, 2010 image provided by NASA shows the International Space Station with the Earth in the background made from the space shuttle Atlantis after undocking. On Wednesday, Jan. 8, 2014, NASA said the White House was poised to announce an extension of the space station's lifetime until at least 2024. The previous end-of-life date was 2020. (AP Photo/NASA)