Spacecraft in orbit are constantly bombarded by debris and rock fragments.
, commercial crew vehicles and space cargo freighters against impacts by debris and rock fragments in space.
The gun used to fire the space-like micro-bullets at the shield material has two stages, the first of which uses conventional gun powder to propel a projectile. The second stage gives the projectile an extra boost by pushing highly compressed hydrogen gas into a smaller tube like a car piston. The pressure in the gun, the researchers said in the statement, is so high that it would destroy the building if it were to explode.
The engineers found that, instead of relying on one thick block of metal to ward off the projectiles, the shield offers better protection when it's made of multiple thin layers, Sarli said.
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