Monday, January 17, 2011

Space expands faster than the speed of light.

A few things will hook my brain...this is one of them.  Einstein's biggest blunder was in fact, not a blunder at all, but it took 70+ years to show that Einstein's adjustment to his Theory of Relativity was correct.

Reading this separate piece in the NYT on the relevancy of recent observations, I am struck by the notion that, "nothing can move through space faster than the speed of light, there’s no limit on how fast space itself can expand."  And given this idea that space expands faster than the speed of light, "when future astronomers look to the sky, they will no longer witness the past. The past will have drifted beyond the cliffs of space. Observations will reveal nothing but an endless stretch of inky black stillness."

Of course, the sky will not be black to the casual observer, because the Milky Way galaxy's stars and solar systems are bound by gravity to it, and will - presumably - move along with it, outward as the universe expands at an increasing rate.

But still, let's say 2000 years into the future, wouldn't you be disappointed if civilization had not moved to the point of worm hole hopping (or some other means of travel) to other planets and galaxies?  It's not been 300 years since Isaac Newton's discovery of gravity, and we're on the verge of quantum computers.  By the year 4011, one would expect that these people wouldn't need to use glass lenses on an orbiting telescope, to discover the universe.

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