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10 Cards in this Set

  • Front
  • Back
How big is space?
Space is ever expanding
Why is space so cold?
The lack of oxygen
Why does space expand?
The space expands without reason and has about 300 billion years left of expansion.
How big is the sun?
The sun expands to 124000 miles
What galaxy do we live in?
The sun expands to 124000 miles
Who were the first people in space?
American’s where the first to go to space
Did man really land on the moon?
The subject has been debated but most likely yes.
How many galaxies are there?
At least 100 billion
Is there life on mars?
Life on other planets haven’t been proven
Do stars vary in brightness?
Yes all stars vary in brightness but most are imperceptible.