Quote by Lawrence M. Krauss

“Andromeda was discovered to be another island universe, another spiral galaxy almost identical to our own, and one of the more than 100 billion other galaxies that, we now know, exist in our observable universe.” quote by Lawrence M. Krauss — Download Open image

““Andromeda was discovered to be another island universe, another spiral galaxy almost identical to our own, and one of the more than 100 billion other galaxies that, we now know, exist in our observable universe.””

Lawrence M. Krauss

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If our species is to survive, our future will probably require outposts beyond our own planet.

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The Internet is a clear example of how our lives have changed in ways we couldn't have imagined: a distributed information source, which is…

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“He always found a simple, easy way to reach the correct answer.”

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Now, almost one hundred years later, it is difficult to fully appreciate how much our picture of the universe has changed in the span of a single human lifetime. As far as the scientific community in 1917 was concerned, the universe was static and eternal, and consisted of a one single galaxy, our Milky Way, surrounded by vast, infinite, dark,…

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“the universe is big and old and, as a result, rare events happen all the time. Go out some night into the woods or desert where you can see stars and hold up your hand to the sky, making a tiny circle between your thumb and forefinger about the size of a dime. Hold it up to a dark patch…

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