at some point this might not be enough to keep humans alive > Atomic-6 conducted hypervelocity impact tests at the University of Dayton Research Institute and

at some point this might not be enough to keep humans alive > Atomic-6 conducted hypervelocity impact tests at the University of Dayton Research Institute and Texas A&M University, firing 3-millimeter aluminum projectiles at speeds exceeding 7 kilometers per second, roughly matching orbital conditions