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Satellite spies on tree-eating bugs

More than 150 years after a small Eurasian tree named tamarisk or saltcedar started taking over river banks throughout the U.S. Southwest, saltcedar leaf beetles were unleashed to defoliate the exotic invader.

Biology / Ecology

created Mar 10, 2009 | popularity 4.5 / 5 (4) | comments 0

NASA, Japan Release Improved Topographic Map of Earth

(PhysOrg.com) -- NASA and Japan released a significantly improved version of the most complete digital topographic map of Earth on Monday, produced with detailed measurements from NASA's Terra spacecraft.

Space & Earth / Earth Sciences

created Oct 18, 2011 | popularity 5 / 5 (1) | comments 0