sábado, 22 de abril de 2017

ScienceCasts: Close Approach Comets



ScienceCasts: Close Approach Comets


Visit http://science.nasa.gov/ for more. In 2017 and 2018, three comets will pass near the Earth providing the opportunity to observe and study these icy interlopers. 4*P Morphology Campaign: http://www.psi.edu/41P45P46P

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