Notícias NASA

Barcelona, Spain

The roofs of Barcelona’s buildings appear as a widespread pink swath on the Mediterranean coastal plain, between forested hills (dark green, top) and the sea. The Llobregat River enters the view top center, cuts through a canyon in the hills…

Rock Outcroppings in the Libyan Desert

Massive sand dunes have been swept between rock outcroppings in the barren Libyan Desert.Only a handful of oases lie scattered across this especially arid section of the vastSahara Desert.This scene was acquired by the ASTER instrument on NASA’s Terra satellite…

Pacific Decadal Oscillation Influences Drought

Recent sea level height data from the U.S./France Jason altimetric satellite during a 10-day cycle ending June 15, 2004, shows that Pacific equatorial surface ocean heights and temperatures are near neutral, but perhaps tending towards a mild La Niña for…

Bologna, Italy—Home of Cassini

Jean-Dominique Cassini (born Giovanni Cassini) a leading astronmer, mathematician, and engineer, began his scientific career at the Panzano Observatory in Bologna, Italy, in the middle of the 17th century. The current NASA mission to Saturn was named after Cassini in…

Significant Event Report for Week Ending 7/2/2004

Cassini Significant Event Report For Week Ending 07/02/04 The most recent spacecraft telemetry was acquired from the Canberra tracking station on Wednesday, June 30th. The Cassini spacecraft is in an excellent state of health and is operating normally. Information on…

6 min read

Madagascar’s Chameleons

The island of Madagascar has one of the highest concentrations of unique species in the world. The island is also experiencing rapid change due to increasing human population pressures. For the past 18 years, Chris Raxworthy, the Curator-in-Charge of the…

Hubble Studies Generations of Star Formation in Neighboring Galaxy

NASA’s Hubble Space Telescope captures the iridescent tapestry of star birth in a neighboring galaxy in this panoramic view of glowing gas, dark dust clouds, and young, hot stars. The star-forming region, catalogued as N11B, lies in the Large Magellanic…

Fires In Alaska and Northern Canada

Thick smoke covered much of central Alaska on June 30, 2004, when the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) on the Orbview-2 satellite captured this image. The tan smoke is being swept west over the Bering Strait and into Russia. The…

Melting Snow on Greenland

As this season’s white winter snow melts, the darker bare ice of Greenland’s permanent ice cap is being exposed. The contrast between the white snow and the gray-blue ice makes it possible to track melting snow on the ice sheet…

3 min read

Richat Structure, Mauritania

This prominent circular feature, known as the Richat Structure, in the Sahara desert of Mauritania is often noted by astronauts because it forms a conspicuous 50-kilometer-wide (30-mile-wide) bull’s-eye on the otherwise rather featureless expanse of the desert. Initially mistaken for…

Uncovering Chameleons

Using satellite data and museum specimen records, scientists predicted the location of 7 new chameleon species in Madagascar.

16 min read

Colorado River Delta, Baja California

The Colorado River is the largest watershed in the southwestern US, emptying into the Salton Trough before reaching the Sea of Cortez. Over the past 2-3 million years, river sediments built a delta that extends from the US-Mexico border for…

3 min read

Fires In Alaska and Northern Canada

Thick smoke hung over eastern Alaska and northwestern Canada on June 27, 2004. The smoke is rising from several lightning-induced fires, which have been burning since mid-June. This image was captured by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) on the…