"Hypervelocity impact" refers to when an object moves extremely fast and collides with another object. It's like when something zooms through the air or space very quickly and hits something with a lot of force. Full definition
This time, they replaced the carbon source with bicarbonate and conducted hypervelocity impact experiments at 1 km / s using a single stage propellant gun. (sciencedaily.com)
In 2010, Close and colleagues published the initial hypothesis that hypervelocity impact plasmas are responsible for a few satellite failures. (sciencedaily.com)
«Why space dust emits radio waves upon crashing into a spacecraft: A new simulation provides the first mechanism to explain why plasma from hypervelocity impacts generates electromagnetic radiation.» (sciencedaily.com)