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Episode 148: HubbleWatch for February 2008

Play Feb 28•4:35

Gravitational lensing is highly useful quirk of the universe. When vast amounts of matter accumulate -- as in enormous clusters of galaxies -- the intense gravity created distorts and magnifies the light of objects behind the cluster. The effect is like creating a giant magnifying glass in space. Astronomers recently used the effect to find one of the youngest galaxies ever seen, and track ...

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