SDO's HMI instrument provides maps of magnetic fields of the entire surface of the sun, showing how strong they are and, for the first time ever, in which direction they are pointing.
Stars form in great dark clouds of cold gas and dust. Stars eventually die, some of them exploding in the very same place they were born.
Previous surveys showed this ice cap thinning and glaciers retreating. The April 12 mission was to measure several glaciers in the area to see how much the Penny Ice Cap has melted in recent years.
This crater looked "filled in." Is this fill composed of solidified impact melt? Or simply a granular flow that originated by a slope failure?
19 MAY 2013 Sunday Experiment Activities for the family showcasing Goddard's science and engineering research and technological developments.
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JUN
2013
Model Rocket Launches
Like to build model rockets, but don't have a launch pad? Now you do!
Come to Goddard — no fees to participate!
NASA Space Weather Media Viewer
NASA Earth As Art
