How far back @NASAWebb will ba able to see?
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Replying to @constructx @JennaExplorer
Because of the expansion of the universe, the space between these distant galaxies and us (and thus the light traveling between) is stretched. The light from these galaxies reaches us as infrared light. To see this light requires a very powerful infrared telescope - enter Webb!
8:42 AM - 10 Jul 2020
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