Astrobiology Crossword Puzzle

QUESTIONS LIST: moon: the name of an object that orbits a planet, alpha centauri: the name of our nearest star after the sun, sun: all planets rotate around this in our solar system, astrobiology: the name of this topic, exoplanet: the name of a planet which rotates around another star, organism: the name for "a living thing", mars: the name of the planet 4th from the sun, water: this may have existed on our nearest planet, adaptation: how organisms evolve to suit their environment, food: one of the required conditions for life.