X-ray telescopes cannot be built on the ground, but there are several recent gamma-ray telescope arrays. They are shaped like radio telescope dishes, but the dish is polished like a huge shiny mirror; quite unique. On Thu, Nov 29, 2018 at 10:31 AM Michael Patrick <geodes...@gmail.com> wrote:
> > Other problems .. >> > > "A large fraction of such astronomical gamma rays are screened by > Earth's atmosphere." https://en.wikipedia.org/wiki/Gamma_ray#Sources > All done by satellite these days > > And don't leave out neutrino telescopes > <https://www.space.com/24334-neutrino-telescopes-astronomy-new-era.html> > Be mindful of Z-order, I think Homestead was a mile underground. > > Michael > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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