What It Means When There's An Air Quality Alert
As humans continue to pump more gases into the atmosphere, you've probably seen air quality alerts more often, but what does that actually mean?
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What Happens To Used EV Batteries (And Can They Be Recycled)
Electronic vehicles are becoming more common on the roads, but their popularity raises the question: what are we going to do with the used batteries?
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Human Evolution Discovery Stuns Scientists: We Were Off By 40 Million Years
For a long time, scientists felt confident in their understanding of the timeline of human evolution. But a recent discovery has completely changed everything.
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Well Actually, The North Star Isn't The Brightest Star In The Sky
Despite what you may believe, the brightest star in the night sky isn't the North Star, although it's probably the most famous one besides the sun.
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How Does Baking Soda Get Rid Of Odors So Well?
It's common knowledge that placing an open box of baking soda in a stinky fridge can eliminate the smells, but why does this actually work?
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What If The Tasmanian Tiger Never Went Extinct?
The Tasmanian tiger hasn't been seen in the wild for nearly 90 years and is assumed by most scientists to be extinct, but what if it were still here?
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What Are The Little Beads In Hand Sanitizer For
After living through the pandemic, everyone is familiar with hand sanitizer, but how many know what those tiny beads are in their hand wash?
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Not All Sand Looks The Same Under A Microscope
Not all sand is the same, and if you look at sand from different beaches around the world under a microscope, you'll see just how diverse it is.
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Why Your Straw Looks Like It's Broken In Water
Rather than always traveling in a straight line, like you'd expect, light can change directions based on the medium its traveling through.
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What If Humans Had Only Stayed On One Continent?
Humans have established a permanent presence on nearly every continent, but how would the world be different if we had stayed in Africa?
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What Happens If The World Runs Out Of Lithium?
Whether you know it or not, lithium is one of the most important elements humans have made use of, but what happens if our supply dries up?
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This Is The Smallest Hummingbird In The World
Hummingbirds are the smallest of the birds, but one member of this fast-flying family is smaller than the rest, only about as big as your pinky.
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Why You're Not Seeing As Many Butterflies Now As You Did When You Were A Kid
Few creatures are as beautiful as the butterfly, but they're slowly disappearing along with other insects, and it's going to be a big problem.
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What If AI Overtakes Humans?
The future of AI is still up for debate, and no one knows what kind of world it might create. But what might the world look like if AI completely took over?
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The Largest Bear Species Today Is Nothing Compared This Prehistoric Nightmare
Bears one of the largest land predators alive right now, but today's bears are tiny compared to a massive prehistoric bear discovered in Argentina.
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The Only Time A Helicopter Landed On Top Of Mount Everest
Mount Everest is not a safe place for people or flying machines, which makes the fact that a helicopter landed there kind of incredible.
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What It Really Means When Eggs Float In Water
Have you ever gone to boil some eggs and found that some sink to the bottom while others float at the surface? What's causing those eggs to float?
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If A Squirrel Is Twitching Its Tail At You, Here's What It Could Mean
Squirrels are so ubiquitous that virtually everyone has had an interaction with one, but what does it mean when it's shaking its tail at you?
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What Happens To Your Body When You Chew Gum (Especially Peppermint)
Most people probably view chewing gum as a habit of little consequence, but it turns out that chewing gum can have a direct effect on your brain.
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The Superhuman Smelling Ability That Could Actually Save Lives
"Superhuman smell" sounds like a phrase that belongs in a world of superheroes and villains, but it's real. And it might have some major medical ramifications.
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Which Bird Has The Longest Lifespan? It's Complicated
If you want to know the age of a bird, you might be surprised to know that there are no good ways to figure it out, at best it's all guess work.
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One Missing Feature From Your Wrist Is A Clear Sign Of Evolution
The human body abounds with vestigial features, but this one seems to be slowly disappearing, and there's an easy way to check if you still have it.
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What Happens To Used Windmill Blades? You Might Be Surprised
Despite Wind turbines being a popular source of green energy, their blades are responsible for tons of landfill waste, but there may be a solution.
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How Do Airplanes Get Fresh Air (And How Much Is Recycled)
Airplanes fly at around 30,000 feet where the air is too thin for a human to survive, so how to they have fresh air for all of a 6-hour flight?
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Why Can't All States Usually See The Northern Lights?
Thanks to the 1859 Carrington Event, the northern lights have been seen in all 50 states (even Hawaii), but that's usually not the case, here's why.
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Why Do Babies Stare At You? It Could Be Tied To Your Appearance
Have you ever wondered why that baby in the restaurant won't stop staring at you? It's probably more than just the crumbs on your face.
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The Most Durable Organism On Earth Looks Like Moving Glass Under A Microscope
Tardigrades have a reputation as one of the toughest animals on the planet, which is why their delicate, transparent appearance is shocking.
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