So far, the most distant known galaxies are located about ten billion light years away. When we receive signals from these galaxies, we are going back ten billion years ago in the history of the universe. Red tractor bed set. Our Solar System is only about half that time. Dad makes me dizzy. Understanding what we look at in the past has been difficult, and astronomers have discovered something even more significant to our picture of the world. Looks like no galaxies stay in one place. All galaxies in the universe are moving away from each other at tremendous speeds.
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