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  • 100 Days and Counting to NASA's Curiosity Mars Rover Landing 04.27.12

    100 Days and Counting to NASA's Curiosity Mars Rover Landing 04.27.12

    April 30, 2012

    News & Features

    At 10:31 p.m. PDT today, April 27, (1:31 p.m. EDT), NASA's Mars Science Laboratory, carrying the one-ton Curiosity rover, will be within 100 days from its appointment with the Martian surface. At that moment, the mission has about 119 million miles (191 million kilometers) to go and is closing at a speed of 13,000 mph (21,000 kilometers per hour).

  • NASA's Spitzer Finds Galaxy With Split Personality

    NASA's Spitzer Finds Galaxy With Split Personality

    April 25, 2012

    News & Features

    The infrared vision of NASA's Spitzer Space Telescope has revealed that the Sombrero galaxy -- named after its appearance in visible light to a wide-brimmed hat -- is in fact two galaxies in one.

  • Fireball Over California/Nevada

    Fireball Over California/Nevada

    April 25, 2012

    News & Features

    A bright ball of light traveling east to west was seen over the skies of central/northern California Sunday morning, April 22. The former space rock-turned-flaming-meteor entered Earth's atmosphere around 8 a.m. PDT. Reports of the fireball have come in from as far north as Sacramento, Calif. and as far east as North Las Vegas, Nev.

  • Study Finds Surprising Arctic Methane Emission Source

    Study Finds Surprising Arctic Methane Emission Source

    April 23, 2012

    News & Features

    A new airborne study with NASA contributions measured surprising levels of the potent greenhouse gas methane coming from cracks in Arctic sea ice and areas of partial sea ice cover. This image was taken over the Arctic Ocean at a latitude of approximately 71 degrees North on April 15, 2010.

  • Year Two: SDO Highlights On Its Anniversary

    Year Two: SDO Highlights On Its Anniversary

    April 23, 2012

    News & Features

    In April of 2010, NASA's Solar Dynamics Observatory (SDO) released its first images, an event known for any telescope as "first light." Since then SDO has continually observed the ever-changing sun on quiet days and explosive ones: there have been more than 1000 solar outbursts since SDO sent back its first pictures of the sun, including flares, coronal mass ejections (CMEs), and the release of energetic particles that can be flung to the farthest reaches of the solar system. Here we describe some of the highlights of SDO science and observations during its second year.

  • Rubber Chicken Flies into Solar Radiation Storm

    Rubber Chicken Flies into Solar Radiation Storm

    April 19, 2012

    Science@NASA Headline News — 2012

    In a unusual twist on space science, students in California have launched a rubber chicken to the edge of space to sample a solar storm.

  • The 3D Lyrid Meteor Shower

    The 3D Lyrid Meteor Shower

    April 18, 2012

    Science@NASA Headline News — 2012

    Astronomers and astronauts are joining forces for an unusual astrophotography experiment during the peak of the Lyrid meteor shower on April 21st.

  • Discovery Departs Kennedy Space Center

    Discovery Departs Kennedy Space Center

    April 18, 2012

    News & Features

    Space shuttle Discovery departed NASA's Kennedy Space Center in Florida for the last time with an early-morning takeoff atop NASA's Shuttle Carrier Aircraft (SCA). Instead of blazing a trail toward low Earth orbit, the agency's most-flown shuttle is on its way to Smithsonian's National Air and Space Museum Steven F. Udvar-Hazy Center in Chantilly, Va.

  • Turbulent Star-Making Region

    Turbulent Star-Making Region

    April 18, 2012

    News & Features

    The image comprises one of the largest mosaics ever assembled from Hubble photos and includes observations taken by Hubble's Wide Field Camera 3 and Advanced Camera for Surveys. Hubble made the observations in October 2011. NASA and the Space Telescope Science Institute are releasing the image to celebrate Hubble's 22nd anniversary.

  • April is the Cruelest Month

    April is the Cruelest Month

    April 13, 2012

    Science@NASA Headline News — 2012

    One year after the historic tornado outbreak of April 27-28, 2011, researchers say they've learned a few things about deadly twisters. Today's story from Science@NASA presents some of the scientific findings that emerged from the swath of destruction.