The Earth Observing System (EOS) is the centerpiece of NASA's Earth Science Enterprise (ESE). It is composed of a series of satellites, a science component, and a data system supporting a coordinated series of polar-orbiting and low inclination satellites for long-term global observations of the land surface, biosphere, solid Earth, atmosphere, and oceans. EOS will enable an improved understanding of the Earth as an integrated system. The EOS Project Science Office (EOSPSO) is committed to bringing program information and resources to program scientists and the general public alike.

November 8, 2004
TRMM Satellite Proves El Niño Holds the Reins on Global Rains
NASA scientists recently found the El Niño Southern Oscillation (ENSO) is the main driver of the change in rain patterns all around the world.
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November 5, 2004
Scientists Find Acid Rain An Unlikely Ally In The Battle Against A Greenhouse Gas
Researchers discovered that acid rain inhibits a swampland bacteria from producing methane, a greenhouse gas.
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