Normally, an object in thermal equilibrium with its environment emits and absorbs thermal radiation at the same rate (left). But researchers have developed a multilayer material (right) that, when ...
Astronomers normally observe galaxies by observing light these objects emit, but some tricky galaxies require a different approach. When you purchase through links on our site, we may earn an ...
Scientists have created the blackest fabric yet – and it could be adorning your evening wear in a few years. Like an eternal black hole, the fabric absorbs 99.87 per cent of light while reflecting the ...