The Universe & Space Crossword Puzzle

QUESTIONS LIST:

• black hole: an object that has gravity so strong that even light can't escape it
• galaxy: a group of millions or billions of stars and planetary systems which are held together by gravity
• light year: a unit of astronomical distance that is used to measure how far galaxies, stars, or planets are from each other
• moon: a natural satellite that orbits a planet
• planet: a natural satellite that orbits a star
• star: a hot, bright ball of gas held together by gravity
• universe: all of space and time, and the matter and energy they contain
• red giant: a small star that fuses helium, causing its outer layers to expand
• super giant: a large star that fuses helium, causing its outer layers to expand
• white dwarf: the remains of the core of a small star
• nebula: a vast cloud of gas and dust in outer space
• big bang: the theory of the origin of the universe