Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Fiery rose and peach sunset skies are a unique perk of our home on Earth. But what colors appear ...

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Nasa’s Perseverance Mars rover has captured a rare strange “blue sunset” over the Red Planet’s horizon, an image that sheds more light on the physics behind an alien sunset. The rover took the snap on ...