The citizens of Comet Valley are being taken over by seeds from an alien plant that has taken root there. A sheriff investigates the strange...
The sun is always changing and NASA's Solar Dynamics Observatory is always watching. Launched on February 11, 2010, SDO keeps a 24-hour eye on the...
An exciting video journey through the world of time-lapse photography by one of the founders of the science of photobiology, Dr. John Nash Ott. Do...
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