NASA | Earth Observing Landsat 5 Turns 25 Years Old
Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 Or get tweeted by NASA: http://twitter.com/NASAGoddard On March 1, the Earth-observing Landsat 5 satellite celebrated 25 years in orbit. Twenty-two years beyond its primary mission lifetime, Landsat 5 is still going strong, making it a keystone of the 37-year Landsat Program. Among Landsat 5's many scientific uses, it has charted urban growth in Las Vegas, monitored fire scars in Yellowstone National Park, and tracked the retreat of a Greenland glacier. Data from the satellite turns up frequently in scientific literature, and should continue to do so, particularly now that the images are available free of charge or copyright. Read/See More: http://www.nasa.gov/topics/earth/features/landsat_bday.html
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