Space Vocabulary

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Across
  1. 5. The explosion of a star where the star may reach a intrinsic luminosity one billion times greater than the sun
  2. 6. All of space and time including planets, stars, galaxies, and all other forms of matter and energy
  3. 7. A spectrum of the electromagnetic radiation emitted by a source
  4. 8. Instrument for viewing distant objects, especially in space
  5. 10. An instrument for forming and examining spectra
  6. 14. The idea that the universe began as a single point, than expanded and is still growing today
  7. 17. Shows the relationship between a star's temperature and its luminosity
  8. 18. A part of space that has a gravitational field so intense that no matter or radiation can escape
  9. 21. A system of stars with gas and dust, held together by gravitational attraction
  10. 24. The interaction that causes attraction between all things that have mass
  11. 25. Very long period waves that move through the ocean because of forces caused by the moon and sun
  12. 26. a small very dense star that is formed when a star has exhausted its nuclear fuel
Down
  1. 1. A measure of the total amount of light emitted by that object
  2. 2. A tide after a full or new moon, when there is the greatest difference between high and low water
  3. 3. A spacecraft with no people in it used to study planets and send information back to Earth
  4. 4. The force acting on the object due to gravity, how heavy an object is
  5. 9. A nuclear reaction where two or more atomic nuclei combine to form one or more different atomic nuclei and subatomic particles
  6. 11. The changes in frequency of any kind of sound or light wave exerted by a moving object
  7. 12. A unit of length used to express astronomical distances
  8. 13. An astronomical object comprising a luminous spheroid of plasma that is held together by self-gravity
  9. 15. A tide after the first or third quarters of the moon, when there is the least difference between high and low water
  10. 16. The galaxy that includes the Solar System
  11. 19. An object that moves around a larger object due to gravity
  12. 20. Quantity representing the amount of matter in a particle or object
  13. 22. An enormous cloud of dust and gas that acts like a nursery for new stars
  14. 23. The act of revolving around another object