3 ms·
Way cooler, because it would imply they share our visible light spectrum!
by darkerside 10y ago
Way cooler, because it would imply they share our visible light spectrum!
- wcoenen 10y agoIt's not a coincidence that we can see in the 390 to 700 nm part of the spectrum. These are the wavelengths that pass through water most easily[1]. Any alien lifeforms which started their evolution in (illuminated) water could be expected to be sensitive to the same slice of the spectrum. [1] https://en.wikipedia.org/wiki/Electromagnetic_absorption_by_water#/media/File:Absorption_spectrum_of_liquid_water.png https://en.wikipedia.org/wiki/Electromagnetic_absorption_by_...