Earth

What was TIROS I, launched on April 1, 1960?

More Questions from Earth
How many continents does Earth have?
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What is the imaginary line that runs from the North to the South Pole called?
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What is the estimate of the true age of a mineral or rock called?
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What zone is between the Earth and the atmosphere?
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In what month does the vernal equinox take place in the northern hemisphere?
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What cloud has a flat, sheetlike appearance?
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Which layer of Earth's atmosphere is the very edge of space?
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John Glenn first orbited the earth in what year?
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