Podcast: Gravitational Lensing

Article written: 22 May , 2007
Updated: 26 Dec , 2015

Astronomers are always trying to get their hands on bigger and more powerful telescopes. But the most powerful telescopes in the Universe are completely natural, and the size of a galaxy cluster. When you use the gravity of a galaxy as a lens, you can peer right back to the edges of the observable Universe.

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Gravitational Lensing – Show notes and transcript

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