Tag Archives: Grace

Geodynamics

Posted on January 7, 2017 by PlatoHagel

Mean Gravity Field Image credit: Unless otherwise noted, images are provided by University of Texas Center for Space Research and NASA  On planet Earth, we tend to think of the gravitational effect as being the same no matter where we … Continue reading →

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It’s Final Endgame for GRAIL’s Twin Spacecraft

Posted on December 15, 2012 by PlatoHagel

The mountain where the two spacecraft will make contact is located near a crater named Goldschmidt. Both spacecraft have been flying in formation around the moon since Jan. 1, 2012. They were named by elementary school students in Bozeman, Mont., … Continue reading →

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GRAIL’s Gravity Tour of the Moon

Posted on December 8, 2012 by PlatoHagel

http://www.jpl.nasa.gov/videos/grail/20121205/GRAILtour20121205-640.swfEmbedded video from NASA Jet Propulsion Laboratory California Institute of Technology This movie shows the variations in the lunar gravity field as measured by NASA’s Gravity Recovery and Interior Laboratory (GRAIL) during the primary mapping mission from March to May … Continue reading →

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Gravimetry

Posted on October 25, 2012 by PlatoHagel

Gravity map of the Southern Ocean around the Antarctic continentThis gravity field was computed from sea-surface height measurements collected by the US Navy GEOSAT altimeter between March, 1985, and January, 1990. The high density GEOSAT Geodetic Mission data that lie … Continue reading →

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Space Geodesy

Posted on July 15, 2012 by PlatoHagel

 Project manager Stephen Merkowitz talks about his work with NASA’s Space Geodesy Project, including a brief overview of the four fundamental techniques of space geodesy: GPS, VLBI, SLR, and DORIS. Learn more about space geodesy at: http://space-geodesy.nasa.gov/ This video is … Continue reading →

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Geodesy and geophysics

Posted on March 6, 2012 by PlatoHagel

Mean Gravity Field Anomalies by definition would require that we understand something about our selves that we did not know before, in that the whole history of you, is a large synopsis of everything that thinks and breath? Imagine indeed … Continue reading →

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Grail: Gravity Recovery and Interior Laboratory

Posted on January 1, 2012 by PlatoHagel

GRAIL Spacecraft Logo NASA’s Gravity Recovery and Interior Laboratory, or GRAIL, spacecraft logo is emblazoned on the first stage of a United Launch Alliance Delta II launch vehicle, now secured in the gantry at Cape Canaveral Air Force Station’s Space … Continue reading →

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Time Dilation

Posted on December 9, 2010 by PlatoHagel

……. is a phenomenon (or two phenomena, as mentioned below) described by the theory of relativity. It can be illustrated by supposing that two observers are in motion relative to each other, or differently situated with regard to nearby gravitational … Continue reading →

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The Lunar Far Side: The Side Never Seen from Earth

Posted on November 14, 2010 by PlatoHagel

                                                            Mass concentration (astronomy) This figure shows the topography (top) and corresponding gravity (bottom) signal … Continue reading →

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FLOW

Posted on April 25, 2010 by PlatoHagel

oscopelabs — July 29, 2008 — Irena Salina’s award-winning documentary investigation into what experts label the most important political and environmental issue of the 21st Century – The World Water Crisis. Salina builds a case against the growing privatization of … Continue reading →

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