Across
- 2. species of subtropical evergreen tree in the family Oleaceae
- 3. is an applied sub-discipline of botany that is the study of plants in space environments
- 4. refers to the cultivation of crops for food and other materials in space or on off-Earth celestial objects – equivalent to agriculture on Earth
Down
- 1. a thin, curved, infrared arc of light in our solar system
- 5. single-celled organisms which consume electromagnetic radiation