The five wheels that still rotate on NASA's Mars Exploration Rover Spirit have been slipping severely in soft soil during recent attempts to drive, sinking the wheels about halfway into the ground.
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Science Mission Directorate
NASA uses orbiting observers and robotic landers to investigate the planets, moons, comets, and asteroids of our Solar System.
Latest Features
Soft Ground Puts Spirit in Danger Despite Gain in Daily...
NASA Releases 3-D Views of Space Station, Rover
NASA released an interactive, 3-D photographic collection of the International Space Station and a model of the next Mars rover.
SDO Spins Its Way Closer to Launch
For three days, SDO sat on a slowly spinning "Miller Table" in the Spacecraft Checkout and Integration Area, a "clean room" at Goddard.
More Features
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"Singing" Electrons Protect and Threaten TV and GPS
Electrons – the particles that carry electricity – can both protect and disrupt your satellite TV or GPS navigator with a "song".
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Engineers Probe Deeper for Root Cause of Spirit Amnesia
Spirit drove on Thursday for the first time since April 8, acting on commands from engineers who are still investigating bouts of unusual behavior exhibited by Spirit in the past two weeks.
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Team Analyzes Spirit Amnesia Events
After NASA's Mars Exploration Rover Spirit had a bout of temporary amnesia on Friday, April 17 it rebooted its computer.
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STEREO Reveals the Anatomy of Solar Storms
STEREO spacecraft images and in situ measurements combine to show a complete picture of CMEs that paves the way for predicting solar storms like meteorologists predict hurricanes.
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Spirit Healthy But Computer Reboots Raise Concerns
The team operating Spirit is examining data received from the rover to diagnose why the rover apparently rebooted its computer at least twice over the April 11-12 weekend.
News Releases
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NASA Selects Future Projects To Study Mars And Mercury
05.04.09 - NASA has selected two science investigations that will aid in the interior examination of Mars and probe the tenuous atmosphere of Mercury.
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MESSENGER Spacecraft Reveals A Very Dynamic Planet Mercury
04.30.09 - A NASA spacecraft gliding over the surface of Mercury has revealed that the planet's atmosphere, the interaction of its surrounding magnetic field with the solar wind, and its geological past display greater levels of activity than scientists first suspected.
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NASA To Hold Briefing To Discuss New Findings About Planet Mercury
04.27.09 - NASA will host a media teleconference on Thursday, April 30, at 2 p.m. EDT to discuss new data and findings revealed by MESSENGER.
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NASA Spacecraft Show Three Dimensional Anatomy of a Solar Storm
04.14.09 - Twin NASA spacecraft have provided scientists with their first view of the speed, trajectory, and three-dimensional shape of powerful explosions from the sun known as coronal mass ejections, or CMEs.
 "What's Up?")
 "SDO spinning on the")
Podcasts
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NASACast: Solar System
Audio and Video podcasts on NASA missions exploring our solar system.
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NASACast: What's Up?
NASA's monthly guide to watching the night sky.
Media Resources
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Anatomy of a CME: Briefing Materials
04.14.09 - This page includes images and video related to the April 6, 2009, NASA briefing on Arctic sea ice.
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Remarks at the Carey School of Business, The Johns Hopkins University
12.18.08 - I am pleased to be invited back to Johns Hopkins, and to the Carey School of Business, to speak with you today on the theme of "improving government processes."
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