In 2018 biologists reported that the elephantnose fish can sense qualities they called “electric colors.”
There's proof that until the 17th century, people's natural sleep patterns were to sleep when it first got dark, wake up for a few hours, and then have another extended sleep.
The blue light from your phone can trick your retinal cells into thinking it's daytime.
Today, we have a simple activity about perception that you can accomplish with a pot of water and a ruler.
How do plants at the bottom of forest floors get enough light?
Sometimes, under the right circumstances, you'll see a mysterious dark patch in an otherwise wonderfully reflective lake. Why?
If you have some dish soap, a mug, and a bright light, we have a science experiment for you to try.
Learn how Roemer learned that light does take time to travel.
Astronomers are learning more about the brightening and dimming of stars.
Learn why you sometimes have glowing red eyes in photographs.