NASA announced today that Mars rover Spirit cannot be freed from its Martian sandtrap. Now the rover will begin a second career as a stationary science platform.
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Close Encounter with Mars
This week Earth and Mars are having a close encounter. On Jan. 27th, the Red Planet will be only 99 million kilometers away and look bigger through a telescope than at any time between 2008 and 2014.
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Mystery of the Giant Ribbon, Solved?
Evidence is mounting that a strong magnetic field lurks just beyond the edge of the solar system. This could explain the recent discovery of a "giant ribbon" in space by NASA's IBEX spacecraft.
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Alien Planet Safari
NASA's next great observatory, the James Webb Space Telescope, is designed to study stars and galaxies. Astronomers are beginning to realize, however, that Webb will make a great planet hunter too.
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Flying Telescope Passes Key Test
Most astronomers wouldn't dream of opening their observatory's doors in 100 mph winds. Yet NASA's new SOFIA telescope recently flew in an airplane at 250 mph with doors wide open.
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Why Won't the Supernova Explode?
NASA is building a new space telescope named "NuSTAR" to answer a question that has been vexing astrophysicists for decades: Why won't the supernova explode?
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Kepler Discovers Five Exoplanets
NASA's Kepler space telescope, designed to find Earth-size planets in the habitable zone of sun-like stars, has discovered its first five new exoplanets.
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Spirit Faces Uncertain Future as New Year Dawns
NASA's Mars rover Spirit is about to mark six years of Red Planet exploration. However, the upcoming Martian winter could end the roving career of the beloved, scrappy robot.
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Blue Moon on New Year's Eve
Party planners take note. For the first time in almost twenty years, there's going to be a Blue Moon on New Year's Eve.
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Voyager Makes an Interstellar Discovery
The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.
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A Flash of Light from Titan
NASA's Cassini Spacecraft has captured the first flash of sunlight reflected off a lake on Saturn's moon Titan, confirming the presence of liquid on the part of the moon dotted with many large, lake-shaped basins.
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Colliding Auroras Produce Explosions of Light
A continent-wide network of all-sky cameras has photographed a never-before-seen phenomenon: colliding auroras that produce explosions of light. The must-see images have solved a long-standing mystery of Northern Lights.
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"Climate One Stop" Web Site Unveiled in Copenhagen
This week, researchers attending the United Nations Climate Change Conference in Copenhagen unveiled a unique web site that gathers and organizes climate data for decision makers, professional scientists and lay people.
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The 2009 Geminid Meteor Shower
The Geminid meteor shower has been intensifying in recent years, and researchers say 2009 could be the best year yet. This year's display peaks on Dec. 13th and 14th.
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Sandtrapped Mars Rover Makes Big Discovery
While stuck in a sandtrap, Mars rover Spirit has made a discovery one researcher calls "supremely interesting."
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Monster Waves on the Sun are Real
Data from NASA's STEREO spacecraft have confirmed the stunning reality of monster waves on the sun known as "solar tsunamis."
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SOFIA Seeks Secrets of Planetary Birth
Imagine cutting retractable doors in the side of a 747 airliner, installing a 17-ton telescope, and flying to the stratosphere to solve one of astronomy's greatest puzzles. That's what NASA and the German Aerospace Center plan to do with a cutting-edge airborne observatory named SOFIA.
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