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May 13th, 2022 | #1 |
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Supermassive black hole at Milky Way's center photographed for first time
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May 15th, 2022 | #3 |
fluxmaster
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You photograph the matter surrounding the black hole. The black hole is the empty space in the middle.
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May 16th, 2022 | #4 | |
RaHoWarrior-SKINHEAD
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Quote:
We've long been able to surmise the black hole at the centre of the galaxy based on the stars that orbit it. That was demonstrated in the 90s. HIGH PROPER-MOTION STARS IN THE VICINITY OF SAGITTARIUS A*: EVIDENCE FOR A SUPERMASSIVE BLACK HOLE AT THE CENTER OF OUR GALAXY - https://ulozto.net/file/BouYipu9w92o...our-galaxy-pdf
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May 16th, 2022 | #5 | |
fluxmaster
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Quote:
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All these ideas…are chained to the existence of men, to who[m]…they owe their existence. Precisely in this case the preservation of these definite races and men is the precondition for the existence of these ideas. --Adolf Hitler |
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May 17th, 2022 | #6 |
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It was imaged in the microwave spectrum (~1mm wavelength), not the visible spectrum, so colors were assigned to create the "photograph". If we were closer to the center of our galaxy we could probably image it in the visible spectrum, or if we constructed laser interferometers much larger than the Earth (maybe using Lagrange points). Maybe in future.
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May 19th, 2022 | #7 | |
RaHoWarrior-SKINHEAD
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Quote:
Visible light cannot penetrate all the gasses and dust between us and centre of the galaxy but other types of radiation can and so those are used. Many spectacular images are published in these fields but it's important to remember that the images often have more in common with art than photography.
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May 19th, 2022 | #8 |
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