IN continuation of our letter of October 29, we find that a reflexion grating does not show the bands so well as a quartz prism, because metals, e.g. silver-on-glass, do not reflect all this kind ...

The Sombrero galaxy, which is about the size of the Milky Way, is positioned some 30 million light-years away. The Webb ...

A rainbow contains all the colours of the visible spectrum. It is often possible to see a secondary bow, which is slightly larger and fainter than the first – and the colours are in the opposite ...

They're your eyes, and they receive signals that fall in the range of visible light ... There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves ...

Researchers have used visible light and gold-copper electrodes to improve CO2 conversion efficiency and selectivity, paving ...

In a world filled with invisible details, multispectral cameras serve as a gateway to discovery, unveiling hidden insights ...

Moderate solar storms may make the northern lights visible in the uppermost parts of the nation, though it won’t be as ...