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Space Geodesy Project Highlights
View recent Space Geodesy Project developments and news -
Earth Orientation Animations
03/01/2013 When you think of the Earth’s orientation, you’d probably imagine something like a globe, where it always rotates around an axis, called the spin axis, defined by the north and south poles. And while this generally makes sense, in reality, the Earth’s orientation is constantly changing very slightly, and this change can be described in three ways. Learn more about how the Earth's orientation changes by watching these animations.
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"Sizing Up Earth" for iPad
Read an introduction to Space Geodesy using the NASA Visualization iPad app.
Read moreDownload NASA Visualization iPad app
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Staff Profile: Stephen Merkowitz, Project Manager
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.
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Staff Profile: Jan McGarry, Mathematician
Mathematician Jan McGarry discusses the science and history of Satellite Laser Ranging (SLR), her role in developing the Next Generation Satellite Laser Ranging system, and her career at NASA's Goddard Space Flight Center.
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Staff Profile: Chopo Ma, Space Geodesist
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.
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Staff Profile: Carey Noll, Computer Scientist
Computer scientist Carey Noll talks about her job as manager of the Crustal Dynamics Data Information System (CDDIS), the applications of her work for various space geodesy techniques such as GPS, and her career at NASA's Goddard Space Flight Center.
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Using Quasars to Measure the Earth: A Brief History of VLBI
Looking Down a Well: A Brief History of Geodesy
