Waves play a major role in breaking down and building up coastline features. But other factors, including tides, currents, and sediment type, also determine how erosional and depositional processes shape coastlines....
Not so long ago, people living near volcanoes had little that might help them to anticipate an eruption. A deep rumble, a puff of smoke, and ash might foreshadow a major volcanic event. Or a volcano might erupt with no...
People have long wondered about the existence of worlds outside of our solar system. Since 1995, significant progress has been made in the search for extrasolar planets, mostly gas giants the size of Uranus or larger,...
This interactive lesson from NOVA Online provides a detailed look at the inner workings of one of the world's most dangerous volcanoes, Nyiragongo in the Democratic Republic of Congo. Users can click on highlighted...
Black holes are some of the strangest objects in the universe. While the physics of these objects is not understood, and they cannot be seen directly, indirect observations have revealed for certain that black holes do...
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