Traditional Culture Encyclopedia - Photography major - How was the picture of the Milky Way taken?
How was the picture of the Milky Way taken?
However, our galaxy is just one of the trillions of different types of galaxies in the Hubble volume, not the ellipse we see. Spiral galaxies, lenticular galaxies and irregular galaxies all exist.
Therefore, even if the whole picture of the Milky Way we see now is simulated by scientists, it is very likely to be wrong.
The Milky Way is about 300,000 light-years wide, which is probably the farthest distance from the earth to the earth photographed by this "camera". Without the warping engine or the special engine of NASA (they claim that what they are developing doesn't need propellant), it will take a long time to shoot the whole picture of the Milky Way. However, let's imagine that NASA or other space agencies really launched a probe with some secret technology and flew so far away from the Earth or the Milky Way. But the problem is that it may take another 300 thousand years to send back the signal with this photo ... so it is unreasonable to leave the galaxy and take pictures of it from the outside before human beings reach the third civilization.
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