Einstein's Cosmic Speed Limit

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Learn about Einstein's predictions about the limit of cosmic speed.

In its first year of operations, NASA’s Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi’s measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.

NASA/Goddard Space Flight Center


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Did she not contradict

Did she not contradict herself 3 times???
Any whoo. It seems that both theories are inherently incorrect...The Models are all wrong. Instead of trying to meld two
seemingly impossible theories together by
circular logic and creating non existent constants, like the speed of light, ya'll should throw it all away and start over.
My my science has become very dogmatic!

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Science is the colossal opus

Science is the colossal opus of the mind.