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Solar System
Feb 17, 2004

    Can People Go to Mars? Space radiation between Earth and Mars poses a hazard to astronauts. How dangerous is it out there? NASA...
Sun
Nov 12, 2003

    The Sun Goes Haywire Solar maximum is years past, yet the sun has been remarkably active lately. Is the sunspot cycle broken...
Universe
May 6, 2004

    Was Galileo Wrong? Using lasers to ping the Moon, NASA-supported researchers are testing a fundamental assumption of modern physics...
Sun
May 29, 2009

  + Play Audio | + Download Audio | + Join mailing list May 29, 2009: An international panel of experts led by NOAA and sponsored by NASA has...
Jun 15, 2009

  + Play Audio | + Download Audio | + Join mailing list June 15, 2009: International Space Station astronauts are getting a new toy in August – a...
Universe, Sun, Solar System
Aug 27, 2000

Less than seven months after the Solar and Heliospheric Observatory registered its 100th comet discovery, amateur astronomers...
Universe, Sun, Solar System
Jul 31, 2009

  + Play Audio | + Download Audio | + Join mailing list July 31, 2009: Earth is entering a stream of dusty debris from Comet Swift-Tuttle, the...
Solar System
Aug 4, 2011

August 4, 2011: Observations from NASA's Mars Reconnaissance Orbiter have revealed possible flowing water during the warmest months on Mars...
Earth
Apr 10, 2009

  + Play Audio | + Download Audio | + Join mailing list April 10, 2009: Steve "Ark" Vander Ark takes a deep breath at the foot of the stairs in a...
Mar 30, 2010

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