Earth Science
Earth Science covers all facets of how the earth works, from from volcanoes to the world's oceans.
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Most mammals have a penis bone called a baculum, but humans don't. A new study sheds light on the history of the baculum, and why ours is missing.
Science has determined that disappearing completely into quicksand isn't possible - but that doesn't mean that getting stuck still won't kill you.
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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Underwater icicles, also called brinicles or sea stalactites, form when super-cold brine meets normal seawater. The sub-zero phenomenon can kill some sea life.
The formidable gusher could stop flowing for a few months in 2019 in order to repair some bridges in dire need.
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
Ever wondered what's the difference between a river, a stream, a brook and a tributary?
By Amanda Onion
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Ocean water is not actually blue, but appears in different shades for many reasons.
By Amanda Onion
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.
The Great Lakes are named so for several reasons. HowStuffWorks looks at why the Great Lakes are so great, including their impressive depths.
By Mark Mancini
Petrified wood can be found all over the world, but how is it created?
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The spring, or vernal, equinox traditionally marks the first day of spring - but climate scientists use a different date altogether. Find out more about this and other facts about the spring equinox.
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?
There are caves all over the world, but some are in places that are hard to explore - hidden by rocks, ruins or even under ice. We've found seven secret caves you probably never knew existed.
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The Poles of Inaccessibility are the locations on Earth that are the farthest away from either water or land and are the most remote spots in the world.
Rossby waves influence everything from high tides to extreme weather patterns, and not just on Earth. They also occur on the sun and on Venus and Jupiter as well. So, what are they exactly?
By Mark Mancini
Split as if by a laser, the Al Naslaa rock in Saudi Arabia's Tayma Oasis baffles scientists and amateur geologists alike. How did this perfect split happen?