Geology

Geology is the study of the composition and physical properties of rocks, minerals, gems and other related earth materials, including diamonds and crystals. Scientists gain an understanding of the Earth's history by studying its composition.

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Did you know that sand dunes can sing? And, their artistic curves certainly make for a gorgeous photograph. In fact, you might call the sand dune the diva of the desert.

By Debra Ronca

Carbon-14 dating is something that you hear about in the news all the time. Everything from mastodons to the Shroud of Turin has been dated using this technique! Learn about how carbon-14 dating works and why it is so accurate!

By Marshall Brain

If geology has taught us anything about Earth's history, it's that nothing is permanent. And that goes for mountain ranges, all of which are constantly rising and falling.

By Mark Mancini

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How, in today's world, could a cave this massive go undetected for so long?

By Patrick J. Kiger

These ancient wonders aren't static sculptures; they vibrate and shift throughout the day, creating a variety of sounds as they stretch their aging, eroding 'bones.'

By Nathan Chandler

The oceans on planet Earth cycle through daily tidal changes. But the ground beneath our feet experiences tides of its own, too.

By Mark Mancini

Will a town in southern Missouri be the epicenter of the next 'big one'?

By Mark Mancini

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The Sahara has expanded by about 10 percent in the past century, mostly due to natural causes, but not all. We can blame the rest on man-made climate change.

By Kristen Hall-Geisler

Talk about a Brexit! Scientists have clues to catastrophic flooding that destroyed a land bridge that once connected England and France.

By Patrick J. Kiger

Science has determined that disappearing completely into quicksand isn't possible — but that doesn't mean that getting stuck still won't kill you.

By Patrick J. Kiger

Surprisingly, living in a city with a high level of natural radiation doesn't have any ill effects.

By Alia Hoyt

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Petrified wood can be found all over the world, but how is it created?

By Mark Mancini & Desiree Bowie

One term might give you the impression of something grand and mysterious, while the other makes you think of claustrophobia-inducing environs that threaten human life. But what's the real difference?

By Nathan Chandler

You can find hematite found all over Earth, as well as Mars. The bloodstone the main source of iron and is also used in jewelry and painting.

By Trevor English & Austin Henderson

Diamonds are beautiful and popular - but not everyone can afford these gems. While man-made versions are less expensive, most lack the luster and brilliance of the real thing, except moissanite. See how it compares!

By Melissa Russell-Ausley

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Trovants, found only in a small town in Romania, are stones that actually seem to move and grow. But are they alive?

By Jennifer Walker-Journey

From the Hope diamond to the shiny bits in instant coffee, crystals have always held the power to fascinate us humans. Are they more than just a bunch of pretty facets?

By Nicholas Gerbis

You likely heard that paleontologists uncovered a cache of dinosaur embryos, bone fragments and eggshells in China. You also may recall that we've made crazy leaps forward in genetics and genomics. Can we put the two together and create a dinosaur?

By Nicholas Gerbis

The sea scorpion may have been the largest bug to ever live on the Earth, according to a recent find. Learn more about the giant sea scorpion.

By Josh Clark

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Are dinosaurs real? Most people don't have to travel too far to answer that question in the affirmative with some kind of exhibit displaying dinosaur fossils. Or simply look at any bird you can see outside your home.

By Tracy V. Wilson

The 1993 movie "Jurassic Park" did a good job of bringing the idea of cloning dinosaurs into popular culture. It portrayed dinosaur cloning in a way that made sense to a lot of people, but is it really possible?

By Tracy V. Wilson

Every time a new fossil is found, one of the first things scientists determine is how old that fossil really is. But how do they determine it, and how can they be completely accurate?

By Tracy V. Wilson

Saber-tooth cats have long been likened to tigers, but they aren't tigers at all. While they share some physical traits and hunting practices with tigers, saber-tooth cats are also quite different.

By Tracy V. Wilson

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Earthquakes and volcanoes get all the press. But the landslides they trigger are often more devastating. What makes the ground suddenly rip downhill, taking trees and homes with it?

By Jennifer Horton & Mark Mancini

At best, fossilization is a long and tricky process that mineralizes an occasional Tyrannosaurus rex or other extraordinary find. How has that affected our chances at charting a model of life itself?

By Robert Lamb