Topic: geology

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Space Volcanoes, an AMNH Shelf Life 360 video

Here on Earth, volcanic eruptions are dramatic manifestations of our dynamic planet. Elsewhere in our solar system, awe-inspiring extraterrestrial volcanoes—both active and extinct—provide clues to planetary formation...

Why Earth Has Two Levels

Earth’s outer shell is made of two materials whose different densities and thicknesses give rise to two distinct “levels” on the planet’s surface. And evidently these two materials—continental crust and more dense ...

How USGS scientists monitor Kilauea Volcano’s ongoing eruptions

On the Big Island of Hawaii, Kilauea Volcano continues to erupt. For U.S. Geological Survey scientists like volcanologist Dr. Alexa Van Eaton, the event is potentially a once-in-a-lifetime opportunity to learn as much...

How to collect black sand with a magnet

If you're ever at a beach with some black sand in the mix, run a magnet through the sand to see if the black sand sticks. Exploratorium educator Ken Finn demonstrates this experiment with a magnet and a plastic cup at...

How Dangerous Are The Northwest’s Volcanoes?

In Oregon, Washington and Idaho, magma has erupted out of the ground in at least 25 places in the last 10,000 years, a mere instant in the lifetime of volcanoes that can be hundreds of thousands of years old... But wh...

What is dust made of?

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of br...

How NASA’s InSight Will Plumb the Depths of Mars

Propelled by a predawn rocket launch from California, NASA’s InSight spacecraft is now on a voyage of some six months to Mars to study the deep interior of the red planet. “The science that we want to do with this ...

Speed up geologic time with a DIY squeeze box

Build. Observe. Play in the sand and dirt. Making your own easy-to-build squeeze box is fun for lots of different reasons, including educational ones. This Science Snacks video with Eric Muller from The Exploratorium ...

How deep have humans dug into the Earth?

From the deep end of Olympic swimming pools to The Paris Catacombs to Switzerland's Gotthard Base Tunnel to the Z-44 Chayvo Well in eastern Russia, travel down into the planet via this surprising Tech Insider animatio...

Hunga Tonga-Hunga Ha’apai, The Birth of a New Island

In late December 2014 into early 2015, a submarine volcano in the South Pacific Kingdom of Tonga erupted, sending a violent stream of steam, ash and rock into the air. When the ash finally settled in January 2015, a n...

What counts as a mountain?

Mountains: super tall, rocky landforms that rise high above the surrounding environment, much higher than hills. We might draw one as a single peak like Mount Fuji, or as a zig zag line of peaks representing a mountai...

How Do Glaciers Move?

Glacier ice is weird. It’s solid. Solid things aren’t supposed to flow. But glacier ice flows like a liquid, and it does that without melting! How is this possible? Travel to Alaska's Mendenhall Glacier with Joe H...

The Pseudo Fossil Challenge

Pseudo means that something isn't real. A fossil is "the preserved remains or traces of animals, plants, and other organisms from the remote past." A pseudofossil might be mistaken for a fossil, but was actually creat...

Drones help scientists study Guatemalan volcanoes

A team of volcanologists and engineers from the Universities of Cambridge and Bristol has collected measurements from directly within volcanic clouds, together with visual and thermal images of inaccessible volcano pe...

Hawaii – The Pace of Formation

The Kilauea Volcano's continued flow of lava into the ocean is one of the few places in the world to provide a front row seat of an island's formation. The Big Island is literally changing before your eyes. This vast ...

Here’s Where the Juice That Powers Batteries Comes From

Atomic number 3 on the periodic table, lithium is the 'li' in the li-ion batteries that are inside of our smartphones, laptops, digital cameras, and electric vehicles. Above, Alejandro Bucher gives Bloomberg's Ashlee ...

Marie Tharp: Uncovering the Secrets of the Ocean Floor

In the early 20th century, Alfred Wegener proposed a revolutionary idea: that the Earth’s continents were once joined together, and had gradually moved apart. The idea contradicted almost everything scientists thought...

Space Rocks: Comets, asteroids, meteors, & meteorites

This claymation primer on comets, asteroids, meteoroids, meteors, and meteorites helps us learn about Space Rocks in a super adorable way. Made by Beakus for the Royal Observatory Greenwich, the animation is one in a ...

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