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8 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
the people that study astronomy
astronomers
no hint this time
the area contraining no air only matter
vacuum
you use this to clean your house
the force that resists motion
friction
HOT
a system containing 100000s to 1000000s of stars
galaxy
our galaxy
milky way
the cluster that has about 40 galaxies
local group
the milky way is in this group
large clouds of gas and space dust
nebula
What is the study of the stars, planets, and other heavenly bodies?
astromony
another name for space