Nasa All Stars: Questions about SDSS and Nick Woolf

    The Sloan Digital Sky Survey (SDSS) – I always love learning about this telescope

How many plates were made for spectra? Are plates still being made today?
How long are scientists able to keep their data private before making it public?
Who came up with the idea of drilling holes for fiber optic cables?

    Optical Tools with Nick Woolf

I was amazed at how many different projects Mr Woolf was involved in and how many places he has worked in.
I’m confused on the interferometer he built at Lick Observatory. Was the Clark telescope connected to other telescopes? Doesn’t an interferometer mean connecting smaller telescopes?
What do you mean by chemistry not being the exclusive way of continuing life?

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