Earth Science covers all facets of how the earth works, from from volcanoes to the world's oceans.
A bubbling mud pool is moving toward the San Andreas Fault, but scientists don't see evidence of an impending earthquake.
The super-cool phenomenon of tidal bores happens in only a few places on the globe, and it takes a very specific set of conditions to occur.
The oceans' levels change daily across the globe. We know them as tidal changes. But what causes this constant shift in sea level and why is it more dramatic is some places than others?
Around 90 percent of an iceberg is under the water, but changing weight distribution caused by melting can make it flip.
All that seashell collecting you've been doing actually hurts the environment.
Some of the cremated remains buried at Stonehenge came from a spot in Wales that's more than 100 miles away. How did that happen?
Harmful algal blooms wreak havoc in oceans around the world and occur nearly every summer along the coastline of Florida.
Twitter was abuzz with reports that pretty green gems were spewing out of the Kiluaea volcano in Hawaii. But the experts took the shine off these speculations.
June 21 marks the summer solstice, the longest day of the year. There's even a midnight baseball game in Alaska to celebrate the 24 hours of sunlight.
And it turns out their strange discovery has a straightforward explanation: copper.
Will a town in southern Missouri be the epicenter of the next 'big one'?
The oceans on planet Earth cycle through daily tidal changes. But the ground beneath our feet experiences tides of its own, too.
He might be the most important scientist you've never heard of, but the ocean current that bears his name helped shape the development of evolutionary theory.
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.
Blue whales are the largest mammal ever known to exist on Earth. So what makes these creatures so huge?
Ocean water is not actually blue, but appears in different shades for many reasons.
Archaeologists discovered three sets of human footprints on a remote island off the coast of British Columbia. They've now determined these footprints are the oldest in all of North America.
Water covers about 71 percent of Earth's surface, but do you know the difference between an ocean and a sea? And which ocean is the smallest?
Ever wondered what's the difference between a river, a stream, a brook and a tributary?
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 we've gathered for your astronomical pleasure.
Petrified wood can be found all over the world, but how is it created?
The Great Lakes are named so for several reasons, including shipwreck preservation, fresh water and even birdwatching.
Fog and mist are similar scientifically. But what makes them different?
A new study showed an alarming imbalance in the male-to-female ratio in green sea turtles hatching at the Great Barrier Reef. Scientists believe climate change is to blame.
Scientist have figured out why two historic avalanches happened on the same unlikely slopes within weeks of one another.
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