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525 articles from NASA

• SATURDAY 14. JANUARY, 2012
• 03:24 Re-thinking an Alien World

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  A distant super-Earth named "55 Cancri e" is wetter and weirder than astronomers thought possible. The discovery has researchers re-thinking the nature of alien worlds.  

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• THURSDAY 12. JANUARY, 2012
• 22:24 Some Comets like it Hot

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  Astronomers are still scratching their heads over Comet Lovejoy, which plunged through the atmosphere of the sun in December and, against all odds, survived. The comet is now receding into the outer solar system leaving many mysteries behind.  

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• WEDNESDAY 11. JANUARY, 2012
• 23:07 Kepler Discovers a Tiny Solar System

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  NASA's Kepler spacecraft has discovered the tiniest solar system so far, composed of a red dwarf star with three rocky planets smaller than Earth.  

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• FRIDAY 30. DECEMBER, 2011
• 19:48 Space Mountain Produces Terrestrial Meteorites

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  The discovery of a towering mountain on Vesta could solve a longstanding mystery: How did so many pieces of the giant asteroid end up right here on our own planet?  

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• 18:29 Twin Gravity Spacecraft Set to Enter Lunar Orbit

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  NASA's twin GRAIL spacecraft, on a mission to study the moon's gravitational field, are nearing their New Year's Eve and New Year's Day main-engine burns to place the duo in lunar orbit.  

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• FRIDAY 23. DECEMBER, 2011
• 07:54 The Night After Christmas Sky Show

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  On Dec. 26th, Venus and the crescent Moon will gather in the western sunset sky for a beautiful post-Christmas show.  

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• TUESDAY 20. DECEMBER, 2011
• 22:54 Kepler Discovers Earth-size Exoplanets

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  NASA's Kepler spacecraft has found two Earth-sized planets orbiting a distant sun-like star. These alien worlds are intermingled in their star system with other much larger planets, an arrangement which challenges orthodox ideas of how planets are formed.  

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• FRIDAY 16. DECEMBER, 2011
• 19:02 Comet Lovejoy Plunges into the Sun and Survives

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  Sungrazing Comet Lovejoy has shocked astronomers by surviving its "death plunge" into the sun. Must-see movies of the comet's passage through the sun's atmosphere are featured in today's story from Science@NASA.  

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• WEDNESDAY 14. DECEMBER, 2011
• 16:54 Curiosity and the Solar Storm

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  Curiosity wasn't the only thing that blasted off for Mars on Nov. 26th. On the same day, a solar storm launched itself toward the Red Planet. The coincidence heralds a new job for the multi-talented rover: Curiosity will spend much of the next nine months studying space weather.  

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• TUESDAY 13. DECEMBER, 2011
• 22:40 New App Helps NASA Keep Track of Meteoroids

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  A new app for iPhones and iPads harnesses the power of citizen scientists to help NASA track meteoroids hitting Earth.  

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• 02:31 The 2011 Geminid Meteor Shower

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  The Geminid meteor shower peaks on Dec. 13th and 14th. The nearly full Moon will interfere with the display, but not obliterate it. Forecasters expect observers with clear skies to see as many as 40 meteors per hour.  

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• FRIDAY 9. DECEMBER, 2011
• 21:35 Is Vesta the "Smallest Terrestrial Planet?"

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  NASA's Dawn probe, now orbiting Vesta in the asteroid belt, has found some surprising things on the giant asteroid--things that have prompted one researcher to declare Vesta "the smallest terrestrial planet."  

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• THURSDAY 8. DECEMBER, 2011
• 15:13 "Slam Dunk" Sign of Ancient Water on Mars

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  As NASA's newest Mars rover Curiosity heads for the Red Planet, veteran rover Opportunity is still busy making discoveries. Opportunity's latest find, an apparent vein of gypsum, is a "slam dunk" sign of ancient water on Mars, say researchers.  

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• MONDAY 5. DECEMBER, 2011
• 17:45 Kepler Confirms First Planet in … ne of Sun-like Star

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  In a significant milestone on the road to finding Earth's "twin" elsewhere in the galaxy, NASA's Kepler mission has confirmed its first planet in the habitable zone of a distant Sun-like star.  

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• SATURDAY 3. DECEMBER, 2011
• 16:04 New Horizons Becomes Closest Spacecraft … roach Pluto

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  NASA’s New Horizons mission has reached a special milestone on its way to reconnoiter the Pluto system, coming closer to the dwarf planet than any other spacecraft.  

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• FRIDAY 2. DECEMBER, 2011
• 18:35 Total Eclipse of the Moon

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  On Saturday, Dec. 10th, sky watchers in the western United States will witness a total lunar eclipse swollen to super-sized proportions by the Moon illusion.  

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• SATURDAY 26. NOVEMBER, 2011
• 16:51 Mars Rover Curiosity Takes Off

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  NASA's biggest and most capable Mars rover ever left Earth this morning in a picture perfect launch from the Kennedy Space Center. The new rover, named "Curiosity", is due to reach the Red Planet in August 2012.  

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• WEDNESDAY 16. NOVEMBER, 2011
• 19:39 New Evidence for Liquid Water on Europa

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  Scientists studying data from NASA's Galileo probe have discovered what appears to be a body of liquid water the volume of the North American Great Lakes locked inside the icy shell of Jupiter’s moon Europa.  

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• MONDAY 14. NOVEMBER, 2011
• 20:40 Mystery of the Lunar Ionosphere

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  How can a world without air have an ionosphere? Somehow the Moon has done it. Lunar researchers have been struggling with the mystery for years, and they may have finally found a solution.  

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• MONDAY 7. NOVEMBER, 2011
• 20:32 Stellar Extremophiles

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  A NASA space telescope named "GALEX" has found stars forming in extreme galactic environments, places where researchers thought stars should not be. The finding could affect astronomy much as the discovery of microbial extremophiles affected biology in the 1970s.  

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• TUESDAY 1. NOVEMBER, 2011
• 04:09 A Star with Spiral Arms

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  Using a Japanese telescope, NASA-supported researchers have found the first clear case of a star with spiral arms. The surprising arms could be sculpted by planets moving through a gas-rich circumstellar disk.  

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• MONDAY 24. OCTOBER, 2011
• 19:47 Strange Hollows Discovered on Mercury

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  NASA's MESSENGER probe has discovered a surprise on Mercury: Something is digging "hollows" in the surface of the innermost planet.  

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• THURSDAY 20. OCTOBER, 2011
• 20:34 Weekend Meteor Shower

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  Earth is about to pass through a stream of debris from Halley's comet, source of the annual Orionid meteor shower. Forecasters expect more than 15 meteors per hour to fly across the sky on Saturday morning, Oct. 22nd, when the shower peaks.  

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• WEDNESDAY 19. OCTOBER, 2011
• 23:04 Comet Storm in a Nearby Star System

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  NASA's Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as the "Late Heavy Bombardment."  

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• TUESDAY 18. OCTOBER, 2011
• 04:30 600 Mysteries in the Night Sky

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  The Fermi Gamma-ray Space Telescope recently produced a map of the night sky. Out of 1873 new sources, nearly 600 were complete mysteries. In today's story from Science@NASA, researchers speculate on the nature of the mystery objects--including the possibility that they are made of dark matter.  

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