Before revision: The "energy flash" of a hypervelocity impact during a laboratory simulation of what happens when a piece of orbital debris hits a spacecraft in orbit The aftermath of a hypervelocity impact, with a projectile the same size as the one that impacted for scale Hypervelocity is very high velocity, approximately over 3,000 meters per second ( 6,700 mph, 11,000 km/h , 10,000 ft/s, or Mach 8.8).
After revision: The "energy flash" of a hypervelocity impact during a laboratory simulation of what happens when a piece of orbital debris hits a spacecraft in orbit The aftermath of a hypervelocity impact, with a projectile the same size as the one that impacted for scale Hypervelocity is very high velocity, approximately over 3,000 meters per second ( , 6,700 mph 11,000 km/h , 10,000 ft/s, or Mach 8.8).