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  • Computer simulations of the collision between NGC 6872 and IC 4970.

    NASA's GALEX Reveals the Largest-Known Spiral Galaxy

    01.10.13 - Measuring tip-to-tip across its two outsized spiral arms, NGC 6872 spans more than 522,000 light-years, making it more than five times the size of our Milky Way galaxy.

  • Asteroid Apophis

    NASA Rules Out Earth Impact in 2036 for Asteroid Apophis

    01.10.13 - NASA scientists at the agency's Jet Propulsion Laboratory in Pasadena, Calif., effectively have ruled out the possibility the asteroid Aphophis will impact Earth during a close flyby in 2036.

  • An illustration of a number of the different kinds of planets found by Kepler all lined up in a row.

    At Least One in Six Stars Has an Earth-sized Planet

    01.10.2013 - A new analysis of Kepler data shows that about 17 percent of stars have an Earth-sized planet in an orbit closer than Mercury.

  • Six extreme UV images of our sun, from May 2010 to Sept. 2012, as seen by SDO, track the rising level of solar activity as the sun ascends toward the peak of the latest 11-year sunspot cycle.

    Solar Variability and Terrestrial Climate  →

    01.08.13 - Researchers now realize even tiny solar variations can have a significant effect on Earth's terrestrial climate.

  • Technicians at NASA Langley prepare a B200 aircraft for the DISCOVER-AQ air pollution measurement mission in California. Credit: NASA Langley/ Sean Smith

    NASA Working to Improve Air Quality Knowledge

    01.10.13 - Residents in Calif.'s San Joaquin Valley will see some unusual air traffic over their region in January and February of 2013 -- two NASA aircraft measuring air pollution.

  • iss034e010953 -- Expedition 34 crew members

    Expedition 34 Update: Jan. 10, 2013

    01.10.13 - The Expedition 34 crew was busy with robotics, science and maintenance aboard the International Space Station on Thursday.

    › ISS Update Video  |  › Crew timelines
  • Engineer Amy Sivak observes NTREES testing in progress.

    NASA Studying Advanced Nuclear Rocket Technologies

    01.09.13 - NASA advanced propulsion researchers are a step closer to safely sending human explorers to Mars and other solar system destinations.

  • iss034e010875 -- Kevin Ford

    Expedition 34 Update: Jan. 9, 2013

    01.09.13 - The station crew was busy with science experiments Wednesday as they continued the ongoing maintenance of the systems aboard the orbiting laboratory.

    › ISS Update Video  |  › Crew timelines
  • Herschel's Three-Color View of Asteroid Apophis

    Herschel Spacecraft Eyes Asteroid Apophis

    01.09.13 - Scientists using the Herschel Space Observatory made new observations of asteroid Apophis as it approached Earth this past weekend.

  • A 2-dimensional vision of the solar wind turbulence at the smallest scale seen yet, thanks to observations by Cluster satellites.

    Cluster Finds Turbulent Eddies May Warm the Solar Wind

    01.08.13 - A new study of data obtained by the European Space Agency's Cluster spacecraft may help explain why the flow of electrically charged particles and magnetic fields from the sun, the solar wind, is hotter than it should be.

  • iss034e010603 -- Flight Engineers Chris Hadfield and Tom Marshburn

    Expedition 34 Update: Jan. 8, 2013

    01.08.13 - After time-off for Russian Christmas, the Expedition 34 crew was busy with science and maintenance Tuesday as they get back to a normal work schedule.

    › ISS Update Video  |  › Crew timelines
  • Artist's conception illustrates the brown dwarf named 2MASSJ22282889-431026

    NASA Telescopes See Weather Patterns in Brown Dwarf

    01.08.13 - Astronomers using NASA's Spitzer and Hubble space telescopes have probed the stormy atmosphere of a brown dwarf, creating the most detailed "weather map" yet for this class of cool, star-like orbs.

  • Artist's concept illustrates an asteroid belt around the bright star Vega

    NASA, ESA Find Evidence for Vega Asteroid Belt

    01.08.13 - Astronomers have discovered what appears to be a large asteroid belt around the star Vega, the second brightest star in northern night skies.

  • The Vela pulsar, a neutron star that was formed when a massive star collapsed.

    New Chandra Movie Features Neutron Star Action

    01.07.13 - Chandra's deep look at a rapidly rotating neutron star may provide new insight into the nature of some of the densest matter in the universe.

    › Photo  |  › Video
  • Artist's concept of floating ice on Titan

    Cassini Suggests Icing on a Lake

    01.08.13 - A new model by scientists working on NASA's Cassini mission finds that hydrocarbon ice might float on lakes on Saturn's largest moon.

  • A graphic showing the Kepler field-of-view with the words

    Kepler Discovers 461 New Planet Candidates

    01.07.2013 - Four of the potential new planets are less than twice the size of Earth and orbit in the "habitable zone," where liquid water might exist.

  • iss034e010476 -- Expedition 34 crew

    Expedition 34 Update: Jan. 7, 2013

    01.07.13 - The Expedition 34 crew living and working aboard the station enjoyed some time off Monday in celebration of the Russian Christmas holiday.

    › ISS Update Video  |  › Crew timelines
  • NASA astronaut Suni Williams photographing InSPACE-3 vial assembly after particles redistribution operation on the International Space Station. (NASA)

    The Self-assembling Particles That Come From InSPACE

    01.07.13 - Shape-shifting malleable, gelatinous forms are orbiting the Earth at this very moment -- growing as they are bombarded by magnetic pulses.

  • Spiral galaxy IC 342, also known as Caldwell 5

    NASA's NuSTAR Catches Black Holes in Galaxy Web

    01.07.13 - NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, set its X-ray eyes on a spiral galaxy and caught the brilliant glow of two black holes lurking inside.

  • Fermi LAT image of gamma-ray detections

    Galaxy's Gamma-Ray Flares Erupted Far From its Black Hole

    01.07.13 - Theorists expect gamma-ray outbursts occur only near a galaxy's central black hole. A few rare observations suggested otherwise.

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