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Pu-238 glowing with the heat of alpha radiation decay

Houston – we need some plutonium

The outer Solar System is a dark and lonely place – solar energy drops off with the inverse square of distance to the Sun so a spaceship in orbit around Jupiter (5.5 times as far from the Sun as the Earth) receives only about 3% as much solar energy as one orbiting Earth. Solar panels […]

The post Houston – we need some plutonium appears on ScienceWonk, FAS’s blog for opinions from guest experts and leaders.