We don't perceive color in our peripheral vision because we have no cones, which sense light frequencies, on the outer edge of our retina.
The Green Door
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Afterglow
What are afterglows and how do they appear? Find out on this Moment of Science.
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True Blue Inside of You?
We hear a lot of supposed facts in grade school that are completely false. For example, did you ever hear that blood is actually blue inside your body, but turns red instantly on contact with air? Learn more on this Moment of Science.
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Saving Our Views Of The Milky Way
Have you ever seen the Milky Way outside of a photograph?
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The Sun Just Blew Up!
Here's an unsettling thought: how do you know the sun didn't just explode? We aren't talking about the everyday, run-of-the-mill controlled explosion the sun is always doing. We mean BOOM, gone, vanished, no more sun! How do we know it's still there? Learn more on this Moment of Science.
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Why Red Eye?
What causes those glowing red eyes in photographs? Learn more on this Moment of Science.
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Why Do Stars Twinkle?
If you've ever glanced skyward, you've probably noticed the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light.
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Light Takes Time
Learn how Ole Roemer learned that light does take time to travel.
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Soap Bubbles and Butterflies
If you have some dish soap, a mug, and a bright light, we have a science experiment for you to try.
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Polarized Lake Light
Sometimes, under the right circumstances, you'll see a mysterious dark patch in an otherwise wonderfully reflective lake. Why?
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Spring Light
When people talk about springtime they usually talk about warm weather or melting snow or the robins returning. But for most living things the real sign of spring is increasing sunlight. The sun is higher in the sky at noontime on a spring day than at noon on a winter day. And the sun is […]
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The Elastic Ruler
Here’s a fun demonstration you can do at home with your kids. All you need is a ruler and a saucepan full of water. Hold the ruler vertically and lower it half-way into the water on the side of the pan farthest from you. Bring your eye down to a position just a little higher […]
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Your Phone And Computer Screens Are Keeping You Awake
Lately, it seems like everyone I know has the same problem: When it’s time for bed, they don’t feel sleepy. While there can be many reasons for why someone’s sleep schedule changes, including aging, researchers have identified a potential cause as artificial lighting, and especially the computer and phone screens that play an ever-present role […]
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Sleep 1 and Sleep 2
You probably feel like your sleeping schedule is out of whack in some manner. Either you sleep too much, too little, or wake up too often. In fact, the typical eight hour uninterrupted sleep is what's really unnatural. Learn more on this Moment of Science.
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The Electric Color Elephantnose Fish
In 2018 biologists reported that the elephantnose fish can sense qualities they called “electric colors.”
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When The Sky Turns Green
As sunlight enters our atmosphere, it bends slightly. This is due to refraction, the same thing that makes a pencil look slightly askew when you stick it half way into a glass of water.
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Your Shadow’s Halo
A "heiligenshein," is German for halo. This is a glowing light around the head and shoulders of your shadow. It's likely to be seen by early morning golfers on dewy grass.
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A Spoon’s Double Vision
Look at the back of a spoon and your reflection appears right side up. Look into a spoon's bowl, and your reflection's upside down. How come?
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