The water on Earth today is all the water we will ever have, And Earth’s water is in endless motion, on the planet’s surface, in its depths and in the atmosphere above.
Dry Lands Getting Groundwater More Crop Per
There’s a reason The Wizard of Oz was set in Kansas: it’s in the middle of “Tornado Alley,” where most of the world’s tornadoes take place.
shreds with winds estimated at more than 200 miles per
All living things need water-it’s essential for the chemical reactions of life. But some creatures need only a little.
Dry Lands Getting Groundwater More Crop Per
Find out how a carnivorous plant and a hungry cell have inspired new technologies with potentially life-saving applications.
kills about 75,000 people just in the United States per
When is Earth due for another major impact? Meet the professional and amateur astronomers who may be the first to know.
data on tens of thousands of asteroid observations per
Telescopes capture the Sun’s ultraviolet light as beautiful images that are full of information about solar processes. This spectacular interactive photo gallery portrays the turbulent Sun in action.
Sun at speeds that range from about 300 to 1,000 km per
Can you match the marine adults with their baby pictures?
I swim fast: up to 70 kilometers (43 miles) per hour
The oceans are vast, so it’s no wonder that people have often looked seaward and wondered, „Isn’t there a way we could drink that water?“
Dry Lands Getting Groundwater More Crop Per
This year we’ll see billions of cicadas, all along the Eastern seaboard—including New York.
masse—some say there may be as many as 1 million cicadas per
Modern conveniences have vastly improved our lives, but when fossil fuels provide the energy to make and power them, the planet’s climate pays a price.
didn’t even keep track; in 2006, personal computers per
