NASA | Space Geodesy Profile: Chopo Ma

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Space geodesist Chopo Ma explains the science of Very Long Baseline Interferometry (VLBI): using radio emissions from distant galaxies to create a precise reference frame for the Earth. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11031 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: http://twitter.com/NASAGoddard

Published 2012-07-12 · Watch on YouTube ↗
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