This is just photonic crystals, literally the entire point of photonic crystals is to create as many interfaces as possible to give light a second/third/fourth/… chance of getting reflected. Basically why your sunglasses are shiny.

The main news is using a precursor chemical and photolithography to cure hollow glass trusses, so that the interface is glass-against-vacuum instead of glass-against-less-contrasting-material.

Interesting. This phys.org article is authored "by Singapore University of Technology and Design"

So they take paid PR directly now? I guess it's better economics than paying a person to rewrite a low-quality summary and not as bad as an AI summarizing the original PR...

This is pretty common for websites to just re-post the university press releases. When my papers got media coverage this was widespread, only a few places would write their own copy.

Yes, that's exactly right. this is NewsWire for science.