NASAのインスタグラム(nasagoddard) - 8月6日 03時00分

Looks like a funky blue lava lamp, but it’s actually a stream of particles moving near the speed of light. These high-energy particles are powerful cleansers — they’re moving so fast that when they collide with a surface, they can remove tiny imperfections.
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This cobalt-colored “particle beam” is polishing the surface of a new X-ray optic made of silicon. Goddard scientist Will Zhang is experimenting with these silicon X-ray mirrors. His goal is to create reproducible, lightweight and super-thin mirrors. That would allow future observatories to carry more mirrors, which means those observatories have a better chance of collecting X-rays coming from high-energy phenomena across the universe.
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Credit: Chris Gunn/NASA

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skepticspace wow! i’m surprised the government allowed you post this picture... i would’ve thought they’d cover-up pictures of UFOs. but i guess their new policy is posting these pictures with an explanation that doesn’t make sense? still doesn’t fool me though..

leesh.py @nasagoddard are the particles emitting EM radiation of higher frequencies than visible light when they hit surfaces and eventually slow down? What range of radiation wavelengths are produced during the cleansing process? 🤔

petebondy Does this make the Webb mirrors the last of the old style polishing techniques? The effort that went into those mirrors is incredible and the perfection of the results astonishing.

tharealtoph Could/would something like this have applications in consumer photography?

carsonstanwood Could this technology also be used in the optical market?

cottoneng What does the machine behind the particles look like?

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