Newfangled space-propulsion technology could help clean up Earth orbit
Wednesday, April 11, 2012 - 08:06
in Astronomy & Space
(Phys.org) -- Some of the most valuable real estate for humans isnt on Earth at all but rather above the planets atmosphere, where all manner of human-made objects orbit. The problem is that those orbits are too crowded with dead satellites and debris, making new launches riskier.