In 1895, Wilhelm Röntgen's accidental discovery of X-rays marked the moment science learned to look beyond surfaces, fusing physics, medicine, and the power of the unseen. In November 1895, German ...

Electromagnetic radiation—light—is everywhere, but it’s not all visible to the naked eye. Astronomy writer Berman (Zoom) runs through a fascinating history of the rainbow’s invisible bands in this ...

The US space agency has released a new collection of images captured in various wavelengths of light that are invisible to the human eye, showcasing the chaotic beauty of space. NASA has taken to its ...

WHENEVER light is produced, invisible W radiations-ultra-violet (U.V.) or infra-red (I.R.) are, almost without exception, produced at the same time. Glasses which are transparent to the visible rays ...

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