In daylight our big blue marble is all land, oceans and clouds. But the night – the Black Marble – is electric. Scientists are using new images of Earth’s dark side to better understand human activity and natural events. Watch the stunning new video…
From Saturn, Earth would appear too small for Voyager spacecraft to make out any detail. Our planet would be just a lonely point of light. That pale dot, that’s home. That’s us. Earth is a grain of sand in the vast cosmic arena. Carl Sagan pointed out that “all of human history has happened on that tiny pixel (shown here inside a blue circle), which is our only home” (speech at Cornell University, October 13, 1994.) Watch the amazing video
An audio of the phenomenon known as “chorus” radio waves within Earth’s magnetosphere that are audible to the human ear, was recorded by RBSP’s Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS). Visualization built by Greg Shirah and Tom Bridgman, NASA/Goddard Space Flight Center Scientific Visualization Studio. Caption by Mike Carlowicz -Watch the video after the jump
The radiation belts that surround Earth, we still don’t know much about them, are home to killer electrons, plasma waves, and intense electrical currents that can disrupt and destroy the electronics on satellites. Image by T. Benesch and J. Carns for the NASA Science Mission Directorate. Caption by Mike Carlowicz.