The accompanying images were taken by NASA satellites and a joint NASA/U.S. Geological Survey satellite, which orbits about 440 miles above Earth collecting data that are used to study changes in land cover, forest growth, water resources and the atmosphere.
Irrigation systems near Garden City, Kansas: Light colors are harvested fields; red are still growing.
Rare rock and ice are bright red in this image of eastern Russia's dormant Anyuyskiy volcano.
The Empty Quarter, in the southern part of the Arabian Peninsula, is a huge sand desert.
Lake Disappointment, amid sand dunes in western Australia, has salty deposits that look white.
- National and World
Seniors share homes for cost saving, companionship
Recently, though, more people have insisted on dollars rather than services.
“In the last five years, we’ve really seen more people looking for financial aid rather than barter,” said Kirby Dunn, executive director of Homeshare Vermont in Burlington.
Companionship is an important side benefit.
An oncologist uses scorpion venom to locate cancer cells
Olson, a pediatric oncologist and research scientist in Seattle, has developed a compound he calls Tumor Paint. When injected into a cancer patient, it seems to light up all the malignant cells so surgeons can easily locate and excise them.
Almost half of America's obese youth don't know they're obese
The good news is that after decades of furious growth, obesity rates finally seem to be leveling off in the U.S.. The bad news is that America's youth still appear to be dangerously unaware of the problem.
Darth Vader is polling higher than all potential 2016 presidential candidates
On the other hand, with a net favorability of -8, Jar Jar is considerably more popular than the U.S. Congress, which currently enjoys a net favorability rating of -65.
- Malaysia jet victims’ bodies arrive in Netherlands
- Kerry cites progress in Gaza cease-fire talks
- House, Senate chart separate courses on border
- US pushes for truce as Gaza battle rages
VIDEO: Train collides with semi truck carrying lighter fluid
A truck driver from Washington is fortunate to be alive after driving his semi onto a set of tracks near Somerset, Ky., and being struck by a locomotive, which ignited his load of charcoal lighter fluid.
Wal-Mart to cut prices more aggressively in back-to-school push
Wal-Mart Stores plans to cut prices more aggressively during this year's back-to-school season and will add inventory to its online store as the chain battles retailers for student spending.
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