SpaceX success launches space startups to new heights

By Heather Somerville SAN FRANCISCO (Reuters) - SpaceX's successful landing of a reusable rocket booster last month opens a new frontier for commercial space startups by offering tremendous cost savings and attracting venture capitalists who once shied away from spatial ventures. Space startups include nano-satellite makers, earth-imaging and weather-tracking technology developers, and ventures with ambitious plans to mine asteroids. If this fledgling industry can reuse rockets, that will save m