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GRACE Follow-On will be a tandem of two satellites, circling the Earth separated by 220 kilometers in the same orbit 490 kilometers above ground. It will measure inter-satellite distances with microwaves (blue) and a new laser interferometer (red). © Earth: NASA “Blue Marble”, satellites: Schütze/AEI

U.S./Germany GRACE-FO: Tandem Of Two Satellites Lifted Off To Track Earth’s Water Movement

MessageToEagle.com | May 23, 2018

MessageToEagle.com – Two satellites will track the continuous movement of water and other changes in Earth’s mass on and beneath the planet’s surface . A joint U.S./German space mission

NASA’s First Mission To Study The Interior Of Mars Awaits May 5 Launch

MessageToEagle.com | May 5, 2018

MessageToEagle.com – All systems are go for NASA’s next launch to the Red Planet. The early-morning liftoff on Saturday of the Mars InSight lander will mark the first time

NASA’s MAVEN Spacecraft Reveals Speed of Solar Wind Stripping Martian Atmosphere

MessageToEagle.com | November 6, 2015

MessageToEagle.com – Why Mars lost much of its atmosphere and whether life could have started on what now seems to be a barren world, are two most important goals

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