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-was the world's first artifical satellite.
-about the size of a beach ball
-took 98 mins to orbit earth
-start of space age and the space race
-impressive size: 183.9 lbs to U.S.'s planned the Vanguard- 3.5 lbs -
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- -launched with a dog named laika
- the first animal in space -provided scientists w/info of effects of space travel -Died after batteries of life-support system ran down
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-First U.S. earth satellite
-U.S. enters the Space Race
-Tiny: 30lbs. -
-First solar- powered satellite
-Oldest satellite still in space -
-Founded by President Eisenhower
-Competition of Sputnik -
-1st launch by NASA
- failed to reach the moon -
-first man made craft
-discovered moon had no magnetic field -
-1st to impact the moon
-re;aesed sodium gas: acted as exp. of gas behaviior in space -
-1st successful weather satellite
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-1st spy satellite with camera
-2nd day up: retrieved pictures of Sov. military targets -
-1st man in space
-108 min. orbital flight -
-1st American in space aboard Freedom 7
-lasted 15 mins. -
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-orbited earth 3 times
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-spends 34 hours in space
- last American to fly in space alone. -
-first woman in space.
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- first close range images of the Moon.
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-12 minutes outside of his Voskhod spacecraft
-the first spacewalk. -
- performs America's first spacewalk.
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-becomes the first man-made object to impact Venus
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-first spacecraft to soft-land on the Moon.
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-first satellite to orbit the Moon.
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-last flight of the Gemini Program
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- first men to walk on the Moon
