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Wednesday, June 19, 2013

Rare Clear View of Alaska

06/19/2013 12:00 AM EDT

On most days, relentless rivers of clouds wash over Alaska, obscuring most of the state's 6,640 miles (10,690 kilometers) of coastline and 586,000 square miles (1,518,000 square kilometers) of land. The south coast of Alaska even has the dubious distinction of being the cloudiest region of the United States, with some locations averaging more than 340 cloudy days per year.

That was certainly not the case on June 17, 2013, the date that the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite acquired this rare, nearly cloud-free view of the state. The absence of clouds exposed a striking tapestry of water, ice, land, forests, and even wildfires. Snow-covered mountains such as the Alaska Range and Chugach Mountains were visible in southern Alaska, while the arc of mountains that make up the Brooks Range dominated the northern part of the state.

The Yukon River -- the longest in Alaska and the third longest in the United States -- wound its way through the green boreal forests that inhabit the interior of the state. Plumes of sediment and glacial dust poured into the Gulf of Alaska from the Copper River. And Iliamna Lake, the largest in Alaska, was ice free. The same ridge of high pressure that cleared Alaska's skies also brought stifling temperatures to many areas accustomed to chilly June days.

Talkeetna, a town about 100 miles north of Anchorage, saw temperatures reach 96°F (36°C) on June 17. Other towns in southern Alaska set all-time record highs, including Cordova, Valez, and Seward. The high temperatures also helped fuel wildfires and hastened the breakup of sea ice in the Chukchi Sea.

Image Credit: NASA/Jeff Schmaltz, LANCE MODIS Rapid Response Team, NASA GSFCCaption: Adam Voiland

New flight tool


19-06-2013 03:55 PM CEST


Technology image of the week: Tablet app simplifies flight preparation and raises safety

Cassini Probe to Take Photo of Earth From Deep Space

06/18/2013 12:00 AM EDT

NASA's Cassini spacecraft, now exploring Saturn, will take a picture of our home planet from a distance of hundreds of millions of miles on July 19.

Earth Explorers take centre stage at Le Bourget


19-06-2013 04:25 PM CEST


ESA's new Biomass mission and the numerous accomplishments from the existing Earth Explorer satellites came into focus today at the Paris Air and Space Show.

Tuesday, June 18, 2013

Cassini Probe to Take Photo of Earth From Deep Space

06/18/2013 12:00 AM EDT


NASA's Cassini spacecraft, now exploring Saturn, will take a picture of our home planet from a distance of hundreds of millions of miles on July 19.

European Space Agency YouTube Update


Jean-Jacques Dordain, ESA Director General, provided an overview of ESA programmes and answered questions from media at the Paris Air and Space Show 2013.

European Space Agency Flickr Update


18-06-2013 04:26 PM CEST


Luca Parmitano and Aleksandr Misurkin prepare for ATV-4ATV-4 approaches the ISS
ATV Albert Einstein, Europe's supply and support ferry, docked with the International Space Station on 16 June 2013, some ten days after its launch from Europe's Spaceport in French Guiana.

In this image you can see ATV's four solar panel arrays along with the vertical antenna on top. This antenna is the 'proximity boom' that is used to communicate with the Station.

ATV Albert Einstein brought 7 tonnes of supplies, propellants and experiments to the complex. ESA astronaut Luca Parmitano oversees the unloading and cataloguing of the cargo of over 1400 individual items.

Credits: ESA/NASA
Luca and Aleksandr
ATV-4 makes its way to the ISSATV-4 rendezvous




ATV-4 on approach