space

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Across
  1. 6. everything that physically exists, the total space, galaxies, star etc…
  2. 7. the outer most layer of the sun.
  3. 9. Most chemical elements are made in a ………….
  4. 11. In about 3000 years a total eclipse will be impossible because of the ……… theory.
  5. 12. some ………… orbit black holes.
  6. 13. Large Magellanic Cloud is the fourth largest …….. in the Local Group.
  7. 15. ……….. was discovered on February 13-15 in 1974, by astronomers Bruce Balick and Robert Brown using the baseline interferometer of the National Radio Astronomy Observatory.
  8. 17. the Soviet Union threw Sputnik 1 which was the world's first artificial …….. to be sent into space orbit, In October 1957.
  9. 18. an astronomer who discovered that there is other galaxies out there
  10. 19. Huge bubbles of hot plasma rise up toward the surface, carrying energy.
  11. 20. ……… is the fifth largest natural satellite in the Solar System.
  12. 21. The only month that can occur without a ……. is February.
  13. 22. ……… doesn't cooperate with baryonic matter and it's totally invisible to light and radiation.
  14. 24. ……… is the largest galaxy in the Local Group Cluster because it contains many dark matter that makes it the most massive.
  15. 25. a quantity of gas which is an early stage in the formation of a star.
  16. 27. …….. keeps earth and the other planets in orbit around the sun, and the moon in orbit around earth.
  17. 28. The longest a ……….. can last is 7.5 minutes.
  18. 29. Omega Centauri is the largest ………. Its stars are 12 billion years old.
  19. 31. the …….. occurs twice yearly, at the beginning of spring (around March 21) and the beginning of fall (around September 23)
  20. 32. planet that was discovered in 1781 by William Herschel.
  21. 34. the distance of a planet from the sun determines the period of its ………
  22. 35. Some ……. are more visible in the southern hemisphere, while others are more visible in the northern hemisphere.
  23. 36. all ………. Form inside a nebula
  24. 39. gases that surround a planet or a star.
  25. 40. planet that the ancient didn’t know about, was discovered in 1846.
  26. 42. a star that is incredibly dense and its rotation is very fast.
  27. 43. it’s the second densest planet.
Down
  1. 1. ………… has a short lifetime because it uses its fuel much faster than any type of stars.
  2. 2. a star that has twice the mass of our sun.
  3. 3. …… is a solar system small body made of ice and small parts of dust.
  4. 4. the …. Is named after the astronomer Gerard who theorized that there is a disk lies after our solar system planets.
  5. 5. at the speed of …….. you could travel from earth to the sun in around 10 -11 minutes.
  6. 8. the universe was formed from one point called …………… that suddenly expanded.
  7. 10. the hottest planet in the solar system.
  8. 14. companies began stating their plans for upcoming mining operations to find (metals such as iron, nickel and even water) in the …. …..
  9. 16. ………. Are the smallest type of galaxies and are full of gas and dust.
  10. 23. …….. is the largest dwarf planet.
  11. 26. ……… are pieces of rock or metal that are smaller than asteroids
  12. 30. the winter ……. doesn't always occur on Dec. 21 sometimes it comes on dec.22.
  13. 33. regions on the sun’s surface that has a high magnetic field
  14. 35. a theory that states there was a smaller planet “the moon” orbiting the sun and it came close to earth therefore earth sucked it in.
  15. 36. …….. release ten million times more energy than a volcano.
  16. 37. the name of anyone who studies space.
  17. 38. the ………. Is a spiral arm that measures around 3,500 light-years across and approximately 10,000 light-years in length.
  18. 41. light from the ….. takes eight minutes to reach earth.