If you count all the little nuts, bolts, loose wrenches and pieces of demolished satellites
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Pretty much all of science and scientists in the world believe in extraterrestrial life, even
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Colonizing and Development, Earth, Earth's Moon, Jupiter, Mars, Saturn, Science, Space travel, The Solar System, The Universe, Titan, Venus
Mechanical, intentional interstellar travel is unlikely since the distances are far too great to imagine.
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