Skywatch

  • June 27, 2013

    Episode 457: Mapping the Moon's Gravity

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    Shownotes

    NASA’s twin GRAIL probes were launched in 2011 to fly to the Moon and measure changes in the gravity of that body. The analysis of the data has just been published and shows a detailed map of the gravity variations. Although mass concentrations under the Moon’s surface were known, the new detailed mapping helps understand how these concentrations formed and what their shape is now.