All of Earth's living things depend on healthy, life-sustaining ecosystems for their survival. But continued human population growth, combined with the planet's limited supply of natural resources, might generate...
Glaciers are found on every continent except Australia. This interactive feature provides an introduction to these moving streams of ice, which cover about 10 percent of Earth's land surface and hold between two and...
Tornadoes can produce damage that ranges from broken tree limbs to a block of houses swept from their foundations. They can inflict utter devastation across a wide swath of land or, destroy one house and leave others on...
The discovery of pulsars won Cambridge University professor Anthony Hewish the first Nobel Prize in physics given to an astronomical subject. In this comic-book-style story Jocelyn Bell explains her role as a graduate...
Auroras are natural atmospheric phenomena created when the solar wind interacts with Earth's magnetosphere, which means that an increase in aurora activity indicates an increase in space weather. This interactive slide...
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