Not so. In digital photography, they all do. The headline is entirely wrong. JWST's mirrors are in fact reflecting an image onto its image sensors which use tin

Not so. In digital photography, they all do. The headline is entirely wrong. JWST's mirrors are in fact reflecting an image onto its image sensors which use tiny light-sensitive diodes to convert light into electrical charges which are then translated into digital information and recorded as pixels. But the entire thing would be pointless if there wasn't an image to begin with. The fact is we can never see anything, we only see an image. But since this is part of how seeing is defined, it is taken for granted that the thing itself is not pressing on our retinas, only a reflection of light, aka an image, is.