Scale Solar System Orbits—And Satellites!
Use planetary orbits and scale ratios to plan flight paths to other planets.
Explosion Math
Investigate different types of volcanic eruptions and linear equations to see if you, a car, Usain Bolt, or a tortoise could survive by simply running away.
7:31
Is This The Dawning Of The Age Of Meghalayan?
Geologists and archeologists debate a new potential geologic age, starting around 4,200 years ago.
22:56
Will World War Three Be Fought Over Water?
Yemen is gripped by civil war—and some experts say it could be the first of many ‘water wars’ to come.
A Day With Fossil Hunters
Science Friday treks with paleontologists on the fossil hunt in Utah’s dusty canyons.
17:39
Utah Is A Gold Mine For Fossils
We find out what it’s like to step into a paleontologist’s boots and discover some dino gold.
8:43
Arctic Science, Put On Ice
After a research vessel runs into trouble in the Arctic Ocean, science gets put on hold—for now.
7:23
The Good—And Bad—Of A Geoengineered Climate
Could humans geoengineer their way out of the climate crisis? Plus California wildfire weather, gooey corn, and other science headlines in this week’s News Round-up.
20:55
From Skyscrapers to Sand Thieves—Digging Into The World Of Sand
Each year, we use nearly 50 billion tons of sand and gravel worldwide. Is that sustainable?
The Man Who Builds Beaches
In this excerpt from “The World in a Grain,” beach sand is gold. Illegal sand mining and rising seas are shrinking beaches, but this man is working to replenish them.