Links:
[1] http://stardate.org/astro-guide/gallery/zapping-sky
[2] http://stardate.org/astro-guide/faqs/are-any-observatories-open-public
[3] http://stardate.org/astro-guide/faqs/how-do-astronomers-measure-distances-stars-and-galaxies
[4] http://stardate.org/astro-guide/faqs/how-do-astronomers-use-space-based-telescopes
[5] http://stardate.org/astro-guide/faqs/how-do-modern-telescopes-work
[6] http://stardate.org/astro-guide/faqs/hubble-space-telescope-only-telescope-space
[7] http://stardate.org/astro-guide/faqs/what-do-astronomers-do-observatory
[8] http://stardate.org/astro-guide/faqs/what-largest-telescope
[9] http://stardate.org/astro-guide/faqs/why-are-many-observatories-located-mountaintops