I have always been obsessed with the steel plate against the star ring. . . I searched and saw this article, an interview with an aerospace expert from Stanford University: https://www.esquire.com/entertainment/movies/amp29126421/brad-pitt-ad-astra-space-science-accuracy-fact- check/
Here's what the experts say about this issue:
1. The scale of the universe is very large, and the star rings or asteroid belts are not so dense. For example, in the asteroid belt in the solar system, if you stand on one asteroid, the possibility of seeing another is very small.
2. Due to (some scientific reason), the collision speed in the universe is often at the level of kilometers per second. Facts have proved that particles of a few microns in the star ring will react when they hit the detector. The metal plate that Pete took is 1.5 mm thick by eye, and basically particles as large as 0.5 mm can be penetrated.
3. At present, there are shells that block meteoroids on the space station, but they are multi-layered, that is, there are metal outer and inner shells, and there is some kind of synthetic fiber in the middle (po master does not understand), which can effectively buffer and disperse them. impact energy. The design strength is to resist debris as large as 1 cm. Because of (some sort of scientific reason...), the stardust and debris that the universe can collide with is often very small.
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