50 Amazing Galaxy Pictures that You Must See
They are the best images of galaxies captured by powerful telescopes of NASA/ESA/ESO, etc. […]
Apart from optical or visible light, instruments on NASA’s and ESA’s powerful telescopes can detect infrared rays, ultraviolet rays, X-rays, gamma rays, and other radiation emitted by stars, galaxies, nebulae, etc. The invisible spectrum of the electromagnetic radiation can reveal features that can’t be seen in the visible light spectrum.
Since our eyes can only see optical or visible light, we have to use different colors to represent infrared, ultraviolet, X-ray and other radiation. This is how the so-called ‘false-color’ or ‘color-coded’ galaxy pictures are made. In the pages that follow, you’ll see both true-color and false-color (or color-coded) galaxy pictures.
Pictured above: Sombrero Galaxy (M104) in Visible Light