Featured in optics
Understanding the weird Biden-Carter photo could help you take better selfies
It's likely not lens distortion that caused the curious appearance. Instead, it's something called perspective distortion.
These ultra-black fish camouflage with the darkness of the deep sea
They can almost vanish—escaping predators and sneaking up on prey.
You can now buy this 25-pound fisheye camera lens that can see behind itself
It has a 270 degree field of view and will cost you a cool $39,000.
Four stargazing gadgets to try even when it’s raining
From simple star stickers to an advanced AR app, our list appeals to any luminary.
Clear-as-day telescopes for watching the night sky
Perfect lighting make all the difference in telescope tech.
Pick the right pair of binoculars for your viewing needs
Too close can be just as bad as not close enough.
Capturing this incredible star cluster required lasers and a bendable mirror
The Very Large Telescope got new adaptive optics technology.
Rainbows are (literally) in the eye of the beholder
Magical phenomena are even cooler when you understand the science behind them.
Broadcast camera lenses at the Olympics can cost as much as a Lamborghini
These 59-pound boxes contain lots of glass and a ton of tech.