| A | B |
|---|
| astronauts | pilots or members of the crew of a spaceship |
| capsule | the enclosed front section of a rocket |
| hatch | a door in an aircraft's or ship's deck |
| horizon | line where the Earth and sky seem to meet |
| lunar | like or about the moon |
| module | a self-contained unit or system designed for a particular function |
| quarantine | isolation to prevent the spread of an infectious disease |
| impact | collision |
| sphere | ball or globe |
| transmission | passage of electronic waves from a transmitter to a receiver |
