Across
- 1. a body that naturally orbits a planet
- 2. GIANTS a very large type of star that is expanding while running out of fuel, and will eventually explode
- 4. a ball of gas that gives off heat and light.
- 5. a large planet famous for the rings of material around its equator
- 8. all of space and the matter and energy contained in it
- 9. a cloud of gas and dust particles that may come together and heat up to form a star
- 10. a person engaged in or trained for spaceflight.
- 11. DWARF the core remaining after a red giant has shed layers of gases.
- 12. a body composed of rock, dust and ice.
- 14. a huge explosion that happens in the life cycle of super-giant stars
- 16. a very large group of stars held together as a system by gravity
Down
- 1. a small planet near Earth. Space probes have brought back samples from this place.
- 2. SYSTEM our Sun and everything that orbits it, including the eight planets (including Earth), the planets' moons, asteroids and comets a large planet famous for the rings of material around its equator
- 3. GIANT a large planet mostly made up of gas.
- 5. an object that orbits another object. Scientists have made and launched many artificial ones of these.
- 6. GIANT a star in a late stage of its life.
- 7. YEAR the distance light travels
- 10. the study of space
- 13. the force of attraction that exists between any two bodies in the universe that have mass.
- 15. WAY the galaxy of which our solar system is a very small part