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Earth
May 22, 2016

Due to an uneven distribution of mass inside the Earth, the Earth's gravity field is not uniform - that is, it has "lumps". By far the...
Earth
May 22, 2016

  Landsat 7, launched on April 15, 1999, continues the legacy of Earth observations started by Landsat 1 in 1972. Since then, Landsat satellites...
Earth
May 22, 2016

The Suomi National Polar-orbiting Partnership (Suomi NPP) is a joint mission to extend key measurements in support of long-term monitoring of...
Earth
May 22, 2016

SORCE is a NASA-sponsored satellite mission that will provide state-of-the-art measurements of incoming x-ray, ultraviolet, visible, near-infrared...
Sun
May 22, 2016

Orbit: Highly elliptical Earth orbit that takes about nine days and reaches approximately 80% of the distance to the moon (200,000 miles). IBEX...
Sun
May 22, 2016

  Orbit: Each spacecraft is in a highly elliptical orbit called a Molniya orbit, during which the spacecraft spends most of its time at the...
Sun
May 22, 2016

Cluster investigates Earth’s magnetic environment, known as the magnetosphere, with coordinated observations among the four mission spacecraft....
Sun
May 22, 2016

A Balloon Array for Radiation-belt Relativistic Electron Losses, or BARREL, balloon is launched over Halley station to float above Antarctica and...
May 6, 2010

Final text for Appendix A.24: Enhancing the Capability of Computational Earth System Models and NASA Data for Operation and Assessment. This...
Jun 21, 2010

Amendment 8: Due Date delayed for Appendix B.8, the Heliophysics Data Environment Enhancements Program. The Heliophysics Data Environment...

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