Earth Science
Earth Science covers all facets of how the earth works, from from volcanoes to the world's oceans.
Worldwide Droughts Uncover Ancient Relics, Ruins and Remains
450 Huge Geometrical Earthworks in the Amazon Hint at Past Civilizations
Ancient Egyptians Believed Cats Had 'Divine Energy'
Is Africa Splitting in Two? Really? Here's the Scoop
What Exactly Is the Eye of the Sahara, aka the Richat Structure?
The Driest Place on Earth: Chile's Atacama Desert
10 Longest Rivers in the U.S.: From the Missouri to the Brazos
What Is the Smallest State in the USA? Looking at Area and Population
Venice Isn't Alone: 7 Sinking Cities Around the World
What Was the Largest Wave Ever Recorded?
Where Have All the Seashells Gone?
HowStuffWorks: 10 Weird Sea Creatures
Learn More / Page 8
Researchers discovered that everyone's favorite prehistoric cat had some seriously big bones — even as a youngster.
By Robert Lamb
Not all fossils are found on dry land. In fact some of the most fascinating fossil finds in history have been submerged for centuries.
By Mark Mancini
The Pacific's Ring of Fire is a 25,000 mile long "ring" that's home to 75 percent of all the world's volcanic activity and 90 percent of the planet's earthquakes. So what makes this area so active?
By Mark Mancini
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The stratosphere is one of Earth's five atmospheric layers that also includes the troposphere, mesosphere, thermosphere and exosphere.
By Mark Mancini
Square waves also called Cross-sea waves may looks super cool. But you never want to get caught up in the grid-patterned waves they generate.
The U.S. is full of exceptional geological formations. But these five set the bar high as far as landmarks go.
By Mark Mancini
This white-hot metal not only makes beautiful jewelry, it's coveted for industrial, medical and military purposes too.
By Alia Hoyt & Desiree Bowie
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The world has only had time zones since the late 1800s. Some people think we should eliminate them and have just one universal time instead.
Permafrost across the globe is rapidly melting. What could this mean for the future of the planet?
By Mark Mancini
Let's take a look at some of the strongest metals on Earth and their surprising uses.
By Dave Roos & Sascha Bos
It's perhaps one of the strangest fossils ever discovered. We'll explain how it came to be 15 million years ago, and how hikers found it in the '30s.
By Mark Mancini
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Cobalt is associated with the color blue, but it's so needed for rechargeable batteries that the U.S. put it on the list of minerals it can't live without.
By Dave Roos
EXXpedition founder Emily Penn will captain the 300, all-female crew in its first Round the World sailing voyage.
Although the trenched enclosures were probably used to conduct rituals, they can tell us how the ancient indigenous people of the Amazon managed their forests.
The perfectly preserved remains of a 3,000-year-old settlement called Must Farm provide a window into the lives of the Bronze Age Britons.
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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
For centuries, ancient cultures celebrated the winter solstice, the shortest day of the year, as the "day the sun came back." Here are five enlightening facts about the winter solstice.
Scientists from The Ohio State University have drilled longest ice core from outside the poles.
By Mark Mancini
We argue that living well requires wine and cheese, but what does living at all require? You might be surprised to find out that there's no single definition.
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To say geologic time moves at a snail's pace is an insult to snails. Our planet's continents are always in flux: Could a new ocean grow amid those incredibly slow changes?
When it comes to fossils, specimens like Sue the Tyrannosaurus rex grab much of the attention. And while Sue is a staggering 67 million years old, she's a new kid on the block, compared to some of the oldest fossils ever found. What's older than Sue?
Archaeologists dig up and study the material remains of human civilizations. Bioarchaeologists do the same thing, except they focus on the remains of, well, us. What's the big deal about old bones and teeth?
A sculpted mammoth shows visitors to the La Brea Tar Pits what these ancient animals might have looked like, but the pits themselves have looked the same for thousands of years. How did they form, and what discoveries lie beneath the sticky surface?
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Famine might bring to mind historical tragedies or modern media coverage of tiny children with swollen bellies. But how does the unimaginable -- a widespread loss of food -- actually happen?
Tanzanite is so rare, it is sourced from just an 8-square-mile (20-square-kilometer) area in Tanzania. It was first discovered in the late 1960s and it burst onto the jewelry scene thanks to Tiffany & Co.