Star Trails in Space (NASA, International Space Station, 03/16/12)

A few nice Science news images I found:

Star Trails in Space (NASA, International Space Station, 03/16/12)
Science news
Image by NASA’s Marshall Space Flight Center
This is a composite of a series of images photographed from a mounted camera on the Earth-orbiting International Space Station, from approximately 240 miles above Earth. Expedition 31 Flight Engineer Don Pettit relayed some information about photographic techniques used to achieve the images: "My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible, due to electronic detector noise effectively snowing out the image. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then ‘stack’ them using imaging software, thus producing the longer exposure." A total of 18 images photographed by the astronaut-monitored stationary camera were combined to create this composite.

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/

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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…

Space Shuttle Discovery Over Earth (NASA, International Space Station, 02/26/11)
Science news
Image by NASA’s Marshall Space Flight Center
Editor’s note: so proud to have been selected in Yahoo’s top news photos of 2011 collection: www.flickr.com/photos/yahooeditorspicks/galleries/7215762. Thanks very much to all of you, our Flickr folks. It’s an honor to redistribute these photos and hope that everyone enjoys them!

Backdropped by a blue and white part of Earth, the aft section of space shuttle Discovery, currently docked with the International Space Station, is featured in this image photographed by an STS-133 crew member on the station.

Image credit: NASA

View original image:
spaceflight.nasa.gov/gallery/images/station/crew-26/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/

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