Image of the Day
The Green Hills (and Oceans) of EarthCredit: NASA Earth Observatory/Jesse Allen; Data: Ocean Color Web teamFriday, April 8, 2011: The Sea-viewing Wide Field-of-view-Sensor (SeaWiFS) measured how much chlorophyll — the pigment that helps turn sunlight into organic energy for plants — existed in the seas and on land from 1998 to 2010. The more saturated blues and greens show a higher concentration of chlorophyll. Unusually, private companies operated the satellite which carried SeaWiFS, and NASA purchased the data from them.
Never Let Me GoCredit: NASAThursday, April 7, 2011: The Canadarm2 robotic arm attached to the International Space Station prepares to release the Japanese cargo ship Kounotori2 ("White Crane") on March 28, 2011. It fell into the Earth's atmosphere, and burned up. The ISS's robot, Dextre, is visible at upper right.
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