Optical sciences professor John Greivenkamp thought students were in danger of losing the connection to their field's beginnings. It was time to start collecting old telescopes to connect them with ...

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Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: On the campus ...

PHILADELPHIA -- Though it looks like a cardboard tube that got left out in the rain, it's a priceless instrument whose owner changed the world. The mottled brown cylinder on display at The Franklin ...