Filed under: Misc. GadgetsWe've seen some pretty wild ideas for space tethers, but it seems like actually executing is a little trickier than people expect -- a joint Russian Space Agency / ESA Young Engineers Satellite 2 mission just screeched to a halt as the deployment of an 18-mile space tether went awry. The project, which was to involve the longest object ever deployed in space, was part of a challenge issued to European university students to safely return an object from space, but failed when the the capsule accidentally released after just 5 miles of tether had unwound. The team thinks the idea still has merit, saying that "they a