Latest about light
What is a light-year?
A light-year is a measure of the distance it takes light to travel through interstellar space over the course of a year.
Ethereal 'halo' and light arcs around the sun captured in photos of ultra-rare phenomena
At least three separate optical phenomena are visible in the new images. Each of which is created by light refracting through millions of perfectly aligned ice crystals in the upper atmosphere.
Shining rainbow rings around the sun photographed in Finland. What caused them?
The extremely rare kaleidoscopic circles have a surprising Earth-based origin.
Why are cave-dwelling eels growing skin over their left eyes? It may be evolution in action.
These "greedy" eels likely retreated into the gloomy depths of underwater caves in search of tasty crustaceans and are adapting to the darkness by going blind, one eye at a time.
Gravity can transform into light, mind-bending physics paper suggests
In the early universe, gravity may have been capable of creating light, a new theoretical paper finds.
Scientists use optical tweezers to play world's smallest game of catch with individual atoms
Scientists who have thrown a single atom from one pair of optical tweezers to another say that the feat could be used to build better quantum computers.
Eerily perfect galaxy-shaped spiral appears over Hawaii. What is it?
A mysterious "whirlpool" of light temporarily shone in the night sky above Hawaii's Mauna Kea. Experts think it was linked to a SpaceX launch.
Optical illusion gives rare green comet an ‘anti-tail’ that seemingly defies physics
C/2022 E3 (ZTF), a comet that has recently made headlines as it flies closer to Earth, briefly developed an ethereal third tail thanks to a weird optical illusion.
