Featured in optics

Understanding the weird Biden-Carter photo could help you take better selfies
These ultra-black fish camouflage with the darkness of the deep sea
You can now buy this 25-pound fisheye camera lens that can see behind itself
Four stargazing gadgets to try even when it’s raining
Clear-as-day telescopes for watching the night sky
Pick the right pair of binoculars for your viewing needs
Capturing this incredible star cluster required lasers and a bendable mirror
Seeing your phone’s screen while wearing sunglasses just takes one quick trick
Rainbows are (literally) in the eye of the beholder
Broadcast camera lenses at the Olympics can cost as much as a Lamborghini