Peter Travers on how he captured colorful trees this Fall with an 8-year-old Canon EOS DSLR and 14-year-old EF zoom lens ...
IFLScience on MSN9d
First Known Double Gravitational Lens Is A Cosmic Telescope Into The Distant UniverseNot only that, but the second lens also magnifies the first – though not very bright, it can be seen in the images collected ...
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