Ever wonder why stars seem to twinkle? This effect is caused by variations in the density of our atmosphere that cause blurring in light coming from space.
from News and Features - NASA's Jet Propulsion Laboratory http://ift.tt/1cYNbRQ
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Friday, 15 May 2015
OPALS Boosts Space-to-Ground Optical Communications Research
from News and Features - NASA's Jet Propulsion Laboratory http://ift.tt/1cYNbRQ
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On This Day: Apollo 12 Lands on the Moon
NASA NASA astronaut Alan Bean steps off the lunar module ladder in this photo from Nov. 19, 1969, joining astronaut Charles Conra...
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