Universe Is 20 Times Bigger Than Previously Thought

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The universe was already far too big to understand. But scientists from theUniversity of Nottingham just found that it's actually much bigger than we'd previously thought.

The observable universe is made up of at least two trillion galaxies, according to a new study. That's 20 times more than had previously been thought. The new estimate comes from a British-led study that used images from the Hubble Space Telescope.