22 Apr '11, 10pm

Earth's Magnetosphere [image] #NASA

You've seen the pattern in science class when you laid bits of iron around a bar magnet. The invisible force field around the magnet becomes suddenly visible when the iron filings fall into line. The iron-cored Earth is also a great magnet, and scientists have spent a century exploring its shape and structure. The visualization above shows the magnetic field around Earth—the magnetosphere—as it might look from space. This view is conceptual, but based on real science observations that have been made since the beginning of the Space Age. The orange and blue lines depict the opposite north and south polarity of Earth's field lines. The field lines are not actually visible, but they can be detected by sensors that count atomic particles—protons and electrons moving in the space around Earth. Unlike the symmetrical pattern of the iron filings and magnet, the magnetosphere is p...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=50208&s...

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La magnetosfera de la Tierra

earthobservatory.nasa.gov 22 Apr '11, 10pm

You've seen the pattern in science class when you laid bits of iron around a bar magnet. The invisible force field around ...

Jizzax Province, Uzbekistan [image] #NASA

earthobservatory.nasa.gov 24 Apr '11, 2am

Uzbekistan is a dry, landlocked country, covered mostly by the sands of the Kyzyl Kum (Qizilqum) Desert. A little over 10 ...

Elevation Map of Badain Jaran Desert [image] #NASA

Elevation Map of Badain Jaran Desert [image] #NASA

earthobservatory.nasa.gov 19 Apr '11, 10pm

Spread sand on an even surface so that the layer is perfectly flat. You might think that gravity should keep the layer eve...

Bassas da India in Sunglint [image] #NASA

Bassas da India in Sunglint [image] #NASA

earthobservatory.nasa.gov 17 Apr '11, 10pm

The vantage point on the International Space Station provides astronauts with many dramatic views of Earth. Occasionally t...

Earth Day 2011: Soda Bottle Suits, Energy Star Hospitals

Earth Day 2011: Soda Bottle Suits, Energy Star ...

greenbiz.com 22 Apr '11, 10pm

OAKLAND, CA — Looking for a little light reading this Earth Day? Why not peruse some of the environmental reports that num...

Islands off the Croatian Coast [image] #NASA

earthobservatory.nasa.gov 16 Apr '11, 10pm

Along the coast of Croatia lies a multitude of islands of varying shapes and sizes. Archaeological finds indicate that som...

NASAの画像:ちょうど1年前の4月に公開された写真。Solar Dynamics Observatoryという新しいミッションからの太陽の写真。左下の白丸は地球のサイズでとっても小さい!

NASAの画像:ちょうど1年前の4月に公開された写真。Solar Dynamics Obser...

earthobservatory.nasa.gov 20 Apr '11, 3am

On April 21, 2010, NASA released the first-light images from its newest sun-monitoring mission, the Solar Dynamics Observa...

Earth Day's E-Waste Collection Boon May Not Benefit Environment

Earth Day's E-Waste Collection Boon May Not Ben...

greenbiz.com 22 Apr '11, 6pm

The news story is pretty much the same, whether it's printed in a community newspaper in Maine, posted on a charitable org...

Sunset over Western South America [image] #NASA

earthobservatory.nasa.gov 24 Apr '11, 10pm

Astronauts onboard the International Space Station see, on average, 16 sunrises and sunsets during a 24-hour orbital perio...

Irrigation along the Shebelle River [image] #NASA

earthobservatory.nasa.gov 10 Apr '11, 10pm

The Shebelle River has its headwaters in the Ethiopian Highlands and transports water and sediment 1,000 kilometers (621 m...

NASA image reveals extent of 2010 Amazon drought ~ @mongabay

NASA image reveals extent of 2010 Amazon drough...

news.mongabay.com 17 Apr '11, 7pm

From NASA: image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, the image shows...

Hobet Mine, West Virginia [image] #NASA

earthobservatory.nasa.gov 09 Apr '11, 10pm

Long before there were people, there were swamps. Those carbon-rich landscapes were eventually buried by mud and sand and ...

Happy Earth Day From Our Editor

Happy Earth Day From Our Editor

earth911.com 21 Apr '11, 7pm

Raquel Fagan, Executive Editor for Earth911 It’s 5 a.m. and I’m sitting in an airport, but I’m happy. As I wait to board a...

How Does Earth Day Fit Into Your Plan? (Cartoon)

treehugger.com 22 Apr '11, 12pm

How Does Earth Day Fit Into Your Plan? (Cartoon) Click to enlarge "Earth Day Planning" by Option-G This the first in a ser...

Will a Real Earth Day Movement Please Stand Up?...

treehugger.com 22 Apr '11, 9pm

-- the day where environmentalism is celebrated with TV specials, special product offers, and well-intentioned community g...