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9 Cards in this Set

  • Front
  • Back
large cloud of gas and dust floating in space
nebula
force that resists motion
friction
one of three basic galactic shapes
spiral
galaxy in which we live
Milky Way
one of three galaxies located closest to ours
Small Magellanic Cloud
the galaxy which resembles an egg or a football
elliptical
scientists who study outer space
astronomers
star system containing from millions to billions of stars
galaxy
an area containing no air or any other matter
vacuum