TIL the experimental ‘Sprint’ anti-ballistic missile went 0 to Mach 10 in only 5 seconds, w 650,000 lbs thrust on a 7,500-lb body. For comparison, a Minuteman III ICBM makes ~200,000 lbs thrust despite weighing >10× more, and a Boeing 747-8 maxes @ ~266,000 lbs while weighing >100× more than Sprint.