The total amount of energy from outside the solar system ever received by all the radio telescopes o...

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The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is less than the energy of a single snowflake striking the ground.

Carl Sagan

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Carl Sagan

American astrophysicist, cosmologist, author and science educator

November 9th, 1934 - December 20th, 1996

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