The most powerful tool in an astronomer’s arsenal is a lens – but not the kind you might think
- Written by Tania Barone, Research Associate in Galaxy Evolution, Swinburne University of Technology
LRG 3-757, or the Cosmic Horseshoe, where the yellow galaxy has magnified the light of the blue one farther away.NASA, ESAAstronomers are living in a golden age of bigger and better telescopes. But even our most advanced technology pales in comparison to the power of nature’s own “cosmic magnifying glasses” – strong...




