Across
- 3. Interplanetary space probe that was launched to study Pluto, its moons and the Kuiper belt.
- 9. A medium-sized rocky object orbiting the Sun
- 10. An object in orbit around a planet.
- 11. The natural attraction between physical bodies.
- 14. The distance traveled by light in a year.
- 15. Person trained to command, pilot, or serve as a crew member of a spacecraft.
Down
- 1. Telescope named after the astronomer Edwin Hubble.
- 2. A small body that circles the Sun with a highly elliptical orbit.
- 4. A hot ball of glowing gas
- 5. Gravitationally curved path of an object around a point in space.
- 6. The first person to use a telescope to study the stars.
- 7. Gravitationally bound system of stars, stellar remnants, interstellar gas and dust, and dark .matter
- 8. Technical instrument used to see distant objects as stars.
- 12. A bowl-shaped depression formed by the impact of ameteoroid.
- 13. A body in orbit around the Sun large enough to have achieved hydrostatic equilibrium and to have cleared the neighbourhood around its orbit.