Earth Science
Earth Science covers all facets of how the earth works, from from volcanoes to the world's oceans.
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This white-hot metal not only makes beautiful jewelry, it's coveted for industrial, medical and military purposes too.
By Alia Hoyt & Desiree Bowie
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
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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
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.
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Cultures all over the world have treasured turquoise for its color and rarity for thousands of years - from Native American jewelry and Aztec and Mesoamerican art to King Tutankhamun's death mask.
Discover the origins of the continental drift theory and how scientists explain these geologic phenomena.
Gondwana was a humongous landmass that persisted for 300 million years before it began to break up, forming all the continents in the modern Southern Hemisphere.
You've probably heard of the Tropics of Cancer and Capricorn, but do you know the difference?
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You've probably heard of the Tropics of Capricorn and Cancer, but do you know the difference?
Mountain Lake in Virginia is best known for its starring role in 'Dirty Dancing.' But today, it's nothing more than a muddy pit that's all but dried up ... and geologists think they may know why.
If it looks like a party is on, maybe they'll come back. Playing the sounds of a noisy, healthy coral reef can attract important fish species to devastated reef habitats.
This is not an easy question to answer, thanks to the mists of time. But historians have put forth several possibilities. An ancient tablet claims one king ruled for 28,000 years!
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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 stratosphere is one of Earth's five atmospheric layers that also includes the troposphere, mesosphere, thermosphere and exosphere.
By Mark Mancini
Trovants, found only in a small town in Romania, are stones that actually seem to move and grow. But are they alive?
Waterfalls are mainly reliant on precipitation to keep flowing. Here are six famous waterfalls that slowed to a trickle when drought set in.
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Some say UFOs, while others say a meteor strike formed the Carolina Bays. Whatever created these isolated ponds and wetlands across North and South Carolina left a wondrous ecosystem that is in dire need of protection.
The waters of the Atlantic and Pacific oceans meet at the tip of Cape Horn and never the two shall mix, right?
The curves of the Serpent Mound, Ohio state's massive and mysterious geological wonder, line up with the sun during equinoxes and solstices.
The rose-red mineral rhodonite was first discovered in the 1790s in the Ural Mountains of Russia. Today it's found globally and is associated with compassion, love and healing.
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Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.
Few Americans like the switching between Daylight Saving Time and Standard Time, but there's conflict on whether to switch permanently to DST or to ST. What are the pros and cons of permanent DST?