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HubbleESA: How many galaxies are there?

A new study using the Hubble Space Telescope and other telescopes has increased the estimate of galaxies in the Universe ten fold. It was previously estimated that there was 100 billion galaxies in the observable Universe.

The researchers used deep space images from the Hubble Space Telescope. They converted images to 3D and applied new mathematical models. The calculations reveal there may be 10 times more galaxies than thought. According to the study, 90 percent may be too faint or far away to see.