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.
Lava Isn't the Only Dangerous Aspect of Volcanoes
Why Is the Thwaites Glacier Called the 'Doomsday Glacier'?
The Surge in Fossil Fuels Could End Radiocarbon Dating
This Sacred Quarry Is a Cornerstone of Native American Spirituality
Was the Cullinan Diamond a Royal Gift or Stolen Gem?
Everyone's on the Hunt for the Element Lithium
Velociraptor Alert: The Feathered Dinosaur Quiz
River-bottom Bones: The Strange World of Underwater Fossil Hunting
There's a Rhino-shaped Cave in Washington State
Learn More / Page 5
One grows from the ground and one from the ceiling, but sometime's it's hard to remember which is the stalactite and which is the stalagmite. How do they get there, anyway?
By John Fuller
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?
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.
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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?
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?
Fossils tell a story, much like the clues at the scene of a crime. Researchers look for evidence and paleontologists study that evidence to answer questions about the past.
To see a dinosaur these days, you can visit any number of museums or traveling exhibits. But you don't necessarily have to leave your yard either.
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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
Countless movies and television shows depict quicksand as some kind of living creature that sucks its victims down into a bottomless pit, never to be heard from again. Well, you can't believe everything Hollywood tells you.
By Kevin Bonsor
Whenever people talk about buying diamonds, they keep mentioning the four Cs. What do they have to do with diamonds?
Diamond engagement rings. Diamond anniversary bands. Diamond earrings and necklaces. And now, the right-hand diamond ring! The four Cs -- cut, clarity, carat and color. Find out what the fuss is all about.
By Kevin Bonsor
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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!
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