"We show that when you have a vertical impact into snow - an analog for the porous ice we think might be just beneath the surface of Ceres - you can have about 77 percent of the impactor's mass stay in or near the crater." http://www.spacedaily.com/reports/What_smacks_into_Ceres_stays_on_Ceres_999.html Looks like our solar system has a catchers mitt right where it needs one. Don't mine Ceres, just mine what is embedded just below the surface. Other space stories of note-- On Math http://www.spacedaily.com/reports/M..._to_drive_Ramanujans_taxi_cab_number_999.html NCC-1729 anyone? The Magnetic Sail http://www.spacedaily.com/reports/M...ative_to_Rocket_Powered_Space_Travel_999.html trans parent Alum--oh never mind http://www.spacedaily.com/reports/Dielectric_film_has_refractive_index_close_to_air_999.html First the Moon--then Mars http://www.marsdaily.com/reports/To...o_the_moon_is_the_best_route_to_Mars_999.html Explore responsibly http://www.space.com/30840-mars-water-life-search-debate.html