 These young targets, where local life would not have formed yet, avoid any interference with local life.For example, microbial payloads launched by solar sails at speeds up to 0.0001 "c" (30,000 m/s) would reach targets at 10 to 100 light-years in 0.1 million to 1 million years.Fleets of microbial capsules can be aimed at clusters of new stars in star-forming clouds, where they may land on planets or be captured by asteroids and comets and later delivered to planets.