Notícias NASA

Scattered Fires in Florida

According to news sources, there were nine large fires burning in Florida Saturday (May 19) and as many as fifteen fires burning today (May 21). Florida has been parched by drought in recent months, and there is still no rain…

Phoenix Mountains Preserve

The Phoenix Mountains Preserve consists of scattered, undeveloped islands in the middle of a sprawling city. The parks and recreation areas of the preserve are under pressure from Phoenix’s spreading suburbs. Private land adjoining the preserve’s parks continues to be…

Niagara Falls

The Niagara River forms the U.S.-Canadian Border and allows Lake Erie to drain northwest into Lake Ontario. Lake Ontario is about 100 m lower than Lake Erie; the Falls and the rapids account for most of the elevation difference. The…

Dust Storm in Afghanistan

The Sea-viewing Wide Field-of-view Sensor (SeaWiFS) viewed this largedust storm over Iran, Afghanistan, and Pakistan today (May 18, 2001).The dust (tan pixels) appears to be lifted from the Khash and MargowDeserts of Southwestern Afghanistan, carried southward along the Iranborder and…

From the Dust Bowl to the Sahel

Severe drought and poor soil conversation practices contribute to desertification.

3 min read

When the Dust Settles

African dust can both benefit and harm Caribbean coral reefs.

12 min read

Fires in Two African Regions

full-size images: Angola and the Democratic Republic of the Congo (1.2 MB) Madagascar (2 MB)There are currently a large number of fires burning intropical countries around the world. Most recently, theModerate-resolutionImaging Spectroradiometer (MODIS) obtained theserelatively cloud-free looks at Madagascar and Southern Central…

Significant Event Report for Week Ending 5/18/2001

Cassini Significant Event Report For Week Ending 05/18/01 The most recent spacecraft telemetry was acquired from the Madrid tracking station on Wednesday May 16. The Cassini spacecraft is healthy and is operating normally. Information on the spacecraft’s position and speed…

3 min read

Astronomers Puzzled over Comet LINEAR’s Missing Pieces

Astronomers analyzing debris from a comet that broke apart last summer spied pieces as small as smoke-sized particles and as large as football-field-sized fragments. But it’s the material they didn’t see that has aroused their curiosity. Tracking the doomed comet,…

5 min read

Front Range of the Rockies

These Multi-angle Imaging Spectroradiometer (MISR) images from May 12,2001, includeportions of southern Wyoming, central Colorado, and western Nebraska.The top view is from the instrument’s vertical-viewing (nadir) camera.The bottom image is a stereo “anaglyph” generated using data from thenadir and 46-degree-forward…

Extensive Fires in Eastern Russia

This scene shows a large number of fires burning across southeastern Russia, releasing a considerable amount of smoke and haze into the atmosphere over the entire region. This true-color image was acquired on May 13, 2001, by the Moderate-resolution Imaging…

Swirls of Color in the Bering Sea

During a recent pass (May 13, 2001) over the Bering Sea, theSea-viewing Wide Field-of-view Sensor (SeaWiFS) captured this true-colorperspective of the region. The image shows a portion of the Bering Seafrom the west coast of Alaska to the international dateline.…

Hyperspectral Imaging

Hyperion Animation (30 MB)The Hyperion instrument aboard NASA’s EO-1 satellite sees the Earthfrom space in a new way. Instead of detecting light in only 3—or even30—wavelengths, it detects 220 distinct wavelengths of light. So many,in fact, that it observes a…