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"For most of the history of our species we were helpless to understand how nature works. We took every storm, drought, illness and comet personally. We created myths and spirits in an attempt to explain the patterns of nature." -Ann Druyan Here on Earth, we are well aware of how devastating storms can be. From hurricanes to flash floods, an unpredictable change in weather can turn a serene setting into a catastrophe in no time at all. The clouds that fill the skies can often portend what type of weather is coming, and to me, the most impressive and fearsome of all is the rare and remarkable…

"Some prophecies are self-fulfilling But I've had to work for all of mine Better times will come to me, God willing Cause I can't leave this world behind" -Josh Ritter You sure can't leave this world behind. At least, not very easily. The reason for it, of course, is gravity. Image Credit: Physclips, via the University of New South Wales' School of Physics. Here on the surface of the Earth, the gravitational potential well is pretty large; large enough that there's no easy way off. Sure, you can pour a huge amount of energy into a rocket to try and overcome this gravitational potential…