We drove to SALT, South African Largest Telescope and did a tour of the Telescope. It is a feat of engineering, funded by international research. My limited understanding is that it is a large computer that takes photos (digital, gamma ray, infra red and radio amongst others) aided by large mirrors and moving arms that line up to a pre assigned/ selected position in space and tracks it (the object in that position) over a time.
It was freezing inside the telescope room, mirroring the night temperature to stop warping and condensation of the mirrors.
Genuine sign as you walk towards the large telescope.
The building of the telescope.
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