"So remember to look up at the stars and not down at your feet. Try to make sense of what you see and hold on to that childlike wonder about what makes the universe exist."
"In this way, Edwin Hubble worked out the distances to nine different galaxies. We now know that our galaxy is only one of some hundred thousand million that can be seen using modern telescopes, each galaxy itself containing some hundred thousand million stars."
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Source: Stephen Hawking (2009). “A Brief History Of Time: From Big Bang To Black Holes”, p.38, Random House
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