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Alaid Volcano, Kuril Islands, Russian Federation (NASA, International Space Station, 05/18/12)

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Alaid Volcano, Kuril Islands, Russian Federation (NASA, International Space Station, 05/18/12)
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Image by NASA's Marshall Space Flight Center
Alaid Volcano in the Kuril Islands of the Russian Federation is featured in this image photographed by an Expedition 31 crew member on the International Space Station. The Kurils chain extends from the Kamchatka Peninsula to the islands of Japan, and contains numerous active volcanoes along its length. Alaid is the highest (2,339 meters above sea level) volcano in the Kuril chain, as well as being the northernmost. The textbook conic morphology of this stratovolcano is marred only by the summit crater, which is breached to the south (center) and highlighted by snow cover. The volcano rises 3,000 meters directly from the floor of the Sea of Okhotsk, with the uppermost part of the volcanic edifice exposed as an island. Much of the sea surface surrounding the volcano has a silver-gray appearance. This mirror-like appearance is due to sunglint, where light reflects off the sea surface and is scattered directly towards the observer onboard the space station. Sunglint is largely absent from a zone directly to the west of the volcano, most likely due to surface wind or water current patterns that change the roughness -- and light scattering properties -- of the water surface in this area. Volcanoes in the Kurils, and similar island arcs in the Pacific "ring of fire", are fed by magma generated along the boundary between two tectonic plates, where one plate is being driven beneath the other (a process known as subduction). Alaid Volcano has been historically active with the most recent confirmed explosive activity occurring in 1996.

Image credit: NASA/JSC

Original image:
spaceflight.nasa.gov/gallery/images/station/crew-31/html/...

More about space station research:
www.nasa.gov/mission_pages/station/research/index.html

There's a Flickr group about Space Station Research. Please feel welcome to join! www.flickr.com/groups/stationscience/

View more than 400 photos like this in the "NASA Earth Images" Flickr photoset:
www.flickr.com/photos/28634332@N05/

_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...


Aurora Borealis Over the British Isles (NASA, International Space Station, 02/14/13)
earth image
Image by NASA's Marshall Space Flight Center
One of the Expedition 34 crew members aboard the International Space Station recorded this night image of the British Isles. The view is to the north with Dublin, Ireland left of center. London appears as the bright cluster of lights centered in the lower right quadrant. The green appearance along the horizon is the Aurora Borealis or Northern Lights.

Image credit: NASA

Original image:
spaceflight.nasa.gov/gallery/images/station/crew-34/html/...

More about space station research:
www.nasa.gov/mission_pages/station/research/index.html

View more photos like this in the "NASA Earth Images" Flickr photoset:
www.flickr.com/photos/28634332@N05/

_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...


Lake Sakakawea, North Dakota (NASA, International Space Station, 01/19/12)
earth image
Image by NASA's Marshall Space Flight Center
Editor's note: Happy Monday evening, Flickr friends! I smiled to see this image today because I was on travel to SOUTH Dakota this weekend. It was 5 degrees and-10 wind chill -- the balmy south was a nice welcome home!

Ice cover on Lake Sakakawea in North Dakota is featured in this image photographed by an Expedition 30 crew member on the International Space Station. This striking photograph illustrates the harsh winter conditions frequently experienced in North Dakota. Ice covers the surface of northwestern Lake Sakakawea, a reservoir on the Missouri River in west-central North Dakota. A local weather station near New Town, ND reported an air temperature of approximately -24 °C (-11 °F), with a wind chill of approximately -32 °C (-25 °F) at 10:36 local time -- six minutes before the image was taken. In addition to the grey ice on the lake, a dusting of white snow highlights agricultural fields to the north and northeast, as well as fissures and irregularities in the ice surfaces. For a sense of scale, the arms of the lake to either side of New Town are approximately 10 kilometers (6 miles) apart. Lake Sakakawea is named—in the Hidatsa language—for the Shoshone woman generally known as Sacagawea, or "Bird Woman". She accompanied the Lewis and Clark Expedition in 1805--1806 as an interpreter and guide. The lake was created following the completion of Garrison Dam (not shown) on the Missouri River in 1954. With a surface area of approximately 148,924 hectares (368,000 acres) and length of 286 kilometers (178 miles), Lake Sakakawea is one of the largest artificial reservoirs in the USA.

Image credit: NASA

Original image:
spaceflight.nasa.gov/gallery/images/station/crew-30/html/...

More about space station research:
www.nasa.gov/mission_pages/station/research/index.html

There's a Flickr group about Space Station Research. Please feel welcome to join! www.flickr.com/groups/stationscience/

View more than 400 photos like this in the "NASA Earth Images" Flickr photoset:
www.flickr.com/photos/28634332@N05/

_____________________________________________
These official NASA photographs are being made available for publication by news organizations and/or for personal use printing by the subject(s) of the photographs. The photographs may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement by NASA. All Images used must be credited. For information on usage rights please visit: www.nasa.gov/audience/formedia/features/MP_Photo_Guidelin...

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