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 ...

Three investigators, widely separated, last week reported on an invisible light ray which seems to be the intimate tool of death. At the Smithsonian Institution Dr. Florence E. Meier fired ultraviolet ...

A new collection of images features data from NASA’s Chandra X-ray Observatory. These objects have been observed in invisible light — including X-rays, infrared, and radio — by some of the most ...

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 ...