Aerial Telegraph
Communication between individuals in spacesuits.

Air-Tight Suit - air-tight dress
An special outfit that would allow a person to survive in vacuum.

Asteroid Mining
The mining of asteroid ore, accomplished by traveling to these tiny bodies.

Disintegrator
A device that causes objects to burst into molecular pieces.

Electrical 'Tether'
A device to make sure an astronaut could return from a free space walk.

Spacewalk
Going outside your space craft for a short time.