Across
- 2. a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
- 5. an icy, small Solar System body that warms and begins to release gases when passing close to the Sun
- 9. curved trajectory of an object[1] such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point.
- 10. meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called
- 12. to move or cause something to move around a central point or line: The earth revolves around the sun.
- 13. Earth's only natural satellite.
- 14. move or cause to move in a circle around an axis or center.
Down
- 1. all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
- 3. a small, rocky object that orbits the Sun
- 4. System made up of a star, eight planets, and countless smaller bodies such as dwarf planets, asteroids, and comets
- 6. an astronomical object comprising a luminous spheroid of plasma held together by self-gravity.
- 7. a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage
- 8. path that an object with mass in motion follows through space as a function of time.
- 11. a large, rounded, astronomical body that is neither a star nor its remnant.