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Gravitational Lenses Look at Infant Galaxies - Universe Today
The massive cluster Abell 2218. Image credit: JHU/STScI. Click to enlarge When regular telescopes aren’t powerful enough, astronomers turn to gravitational lenses; natural telescopes that can peer back to earliest times in the Universe. An international team of astronomers recently demonstrated this technique with Hubble. They can see how infant galaxies looked only a billion … Continue reading "Gravitational Lenses Look at Infant Galaxies"