| A | B |
|---|
| astronauts | pilots or members of the crew of a spacecraft |
| capsule | front section of a rocket made to carry instruments and the crew |
| hatch | trapdoor covering an opening in an aircraft's or ship's deck |
| horizon | line where the Earth and sky seem to meet; skyline |
| lunar | of, like, or about the moon |
| module | self-contained unit or system within a larger system, often designed for a particular function |
| quarantine | detention, isolation, and other measures taken to prevent the spread of infectious disease |
| impact | collision; act of hitting something else |
| sphere | ball or globe |
| transmission | passage of electronic waves from transmitter to a receiver |
| historical nonfiction | stoy set in the past that tells about an event that actually took place |
