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On October 4, 1957.
sputnik
The Troposphere is a layer of the first layer of the atmosphere. It is about right above the clouds.
The satellite was called Sputnik-1, launched by the USSR on October 4, 1957. It orbited the Earth for 4 months until it reentered the atmosphere and burned up on January 4, 1958. The first successful US satellite was Explorer I, launched on February 1, 1958.
He described it by saying it was "a real fireball out there--a real fireball..."
the earths atmosphere
On October 4, 1957.
The first manmade satellite to orbit the Earth was called Sputnik 1, and was launched on October 4, 1957 by the USSR (Russia).
mesosphere
troposphere
the earth first atmosphere is troposphere
photosynthesis
The first manmade object in outer space was Sputnik 1, launched by the USSR on October 4, 1957.
troposphere
Sputnik was the first satellite launched outside of Earth's atmosphere. It was launched by the Russians.
He was Neil A. Armstrong.
This gas was carbon dioxide.