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What has NASA done lately to help the Earth?

Dr Pete Worden of NASA presents on much of the Earth Science work NASA is doing - fascinating presentation to Google.

At present, NASA has more than a dozen large Earth observing satellites in orbit, returning over a terabyte per day of physical, chemical, and climatological data about our planet. NASA gathers more data about the earth, and funds more research in the Earth Sciences, than the rest of the world combined.

nasa google pete worden