Waking Times Things We Can’t See
When you think about it, there is a great deal out there that we can’t see.
Our eyes only respond to a very narrow range of electromagnetic radiation. The following diagram demonstrates just how narrow our range of vision compared to the overall electromagnetic spectrum.
So we can’t see anything that generates or reflects wavelengths equal to or longer than infrared, as the following image demonstrates. Even the Hubble Space Telescope can’t see the distant infrared galaxy that the Spitzer Space Telescope can see with its infrared sensors.
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