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Latest Thematic Mapper Stories

5edf07f3f650895fac701b50cb7a3500
2010-02-01 11:35:00

The intense public debate on how rapidly the Himalayan glaciers are retreating highlights the necessity for the constant monitoring of glaciers worldwide by satellites. Since glaciers are among the most reliable indicators of climate change and because they can have a major influence on water availability, knowledge of the recent changes and future behavior is of great interest for climate scientists and governing bodies. A key to assess these changes or to model their future evolution is the...

749122e42dac96c5a6bb45b4148e46e9
2009-03-02 11:40:00

132,969 ... 132,970 ... 132,971. Like a trusty watch counting up the minutes, the Landsat 5 satellite keeps on ticking, orbit after orbit around Earth. Well beyond its design lifetime of 15,000 orbits, the satellite's trajectory could go askew or its instruments could malfunction at any moment. But not today. Still observing the Earth after 25 years -- 22 beyond its three-year primary mission lifetime -- Landsat 5 collects valuable scientific data daily. Some attribute the satellite's...

ecdbe7d42f43db215666ea53369fec451
2007-03-07 14:10:00

GREENBELT, Md. - Researchers from NASA and the U.S. Geological Survey (USGS), Golden, Colo., have woven together more than a thousand images from the Landsat 7 satellite to create the most detailed, high-resolution map ever produced of Antarctica. The Landsat Image Mosaic of Antarctica (LIMA) offers views of the coldest continent on Earth in 10 times greater detail than previously possible. "These images give us incredibly detailed views of the Antarctic ice sheet surface and serve as maps...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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