The light emanating from mobile phones is also in the blue end of the spectrum. (dublindoula.com)
In 1960, physicists found that the Earth's gravity shifted the wavelengths of falling photons slightly to the blue end of the spectrum, just as Einstein had predicted (Physical Review Letters, vol 4, p 337). (newscientist.com)
[4] This high velocity, from the nova towards the Earth, means that the wavelength of the line in the absorption in the spectrum due to the presence of lithium is significantly shifted towards the blue end of the spectrum. (sciencedaily.com)