The Universe

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Across
  1. 2. Scientist who observed that galaxies were moving away from each other
  2. 5. Stars brightness as if the stars were the same distance from earth
  3. 6. A large assemblage of stars (and often gas and dust), typically containing millions, to hundreds of billions of member stars
  4. 7. small, solid, rocky bodies that orbit close to the Sun
  5. 10. A large hot ball of gas which generate energy in its core by nuclear reactions
  6. 11. Born when gas and dust collide inward, held together by gravitational forces
  7. 12. Primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today
  8. 13. A major object which orbits around a star. There are eight of these in our solar system.
  9. 15. The branch of astronomy that deals with the origin, large-scale properties, and the evolution of the observable universe
  10. 19. The remains of a high-mass star
  11. 21. The reaction produced when hydrogen combines to form helium on stars
  12. 22. The hottest starts appear this colour
  13. 24. Have arms or stars, gas, and dust that curve away from the centre of the galaxy in a spiral pattern
  14. 25. The Apparent Shift In Position of an Object when viewed from different locations
  15. 26. "the sun and all things orbiting around it, including the eight major planets, their satellites, and all the smaller pieces such as asteroids and comets
  16. 28. solid debris from space (asteroids) that are moving towards Earth
  17. 31. After a low or medium mass star becomes a red giant, the outer parts grow bigger and drift into space, forming a cloud of gas
  18. 32. Everything that physcially exists: the entirety of space and time, all forms of matter, energy and momentum, and the physical laws and constants that govern them.
  19. 34. Shaped like spheres or eggs; have almost no dust or gas between stars; contain old stars
  20. 35. Most asteroids are found here, between the orbits of Mars and Jupiter
  21. 36. Unit of distance equal to average spacing between the Earth and the Sun
Down
  1. 1. The blue-white hot core of a star left behind after cooling down
  2. 3. The farther away a glaxaxy, the faster it is moving away from us
  3. 4. A dying red super giant suddenly explodes
  4. 6. The process of galaxies colliding to create a larger galaxy
  5. 8. How bright a star appears from earth
  6. 9. A part of a constellation that forms its own pattern in the sky
  7. 14. Small body of ice and dust ("Dirty Snowball") that orbits the sun. Contains a head (Coma) and a tail(s) or gas and dust
  8. 16. A group of stars that form a pattern in the sky
  9. 17. Formed when a massive star collapses in on itself. It is so storng that nothing, not even light can escape
  10. 18. The earliest stage of a stars life
  11. 19. All stars start as this. A large cloud of gas and dust
  12. 20. The cooler stars appear this colour
  13. 23. The Distance the light travels in one year (365 1/4 Days)
  14. 27. a brief streak of light produced by a small particle entering Earth’s atmosphere at high speed
  15. 29. White dwarf runs out of fuel and dies as this
  16. 30. Faint galaxies without a definite shape; smaller than the other types of galaxies; contain fewer stars
  17. 33. a small object from outer space that passes through Earth’s atmosphere and reaches the surface