Latest Landsat 7 Stories

2012-07-17 13:24:13

NASA and the U.S. Geological Survey (USGS) will hold a news conference at 11 a.m. EDT, Monday, July 23, to highlight the accomplishments of the world's longest-running Earth-observing satellite program -- Landsat. The briefing will be held at the Newseum at 555 Pennsylvania Ave. NW, Washington, and feature extensive imagery of our changing planet and local U.S. landscapes. In cooperation with the U.S. Department of the Interior (DOI) and its science agency, USGS, NASA launched the first...

Landsat Sets Standard For Maps Of World's Forests
2012-06-20 03:56:28

[ Watch the Video ] NASA's Earth-observing fleet of satellites provides a worldwide and unbiased view with standardized scientific data -- information crucial for tracking the health of the world's forests. Countries like Brazil are using data from NASA satellites to track and measure their forests in advance of a United Nations effort to reduce climate change by providing "carbon credits" for protected land. The concept is known as REDD+, which stands for Reducing Emissions from...

Landsat Captures Texas 'Crop Circles'
2012-04-30 03:51:20

[ Watch the Video ] A water-rich polka dot pattern takes over the traditional rectangular patchwork of fields in this time series animation of 40 years of Landsat images. In the dry Texas panhandle near the town of Dalhart, this transformation is due to center-pivot irrigation, a farming method that improves water distribution to fields. It was invented by farmer Frank Zybach in 1949. Center-pivot irrigation works by pumping water from the center of the field through a long pipe that...

2012-01-27 10:16:12

Over dinner on R.V. Calypso while anchored on the lee side of Glover´s Reef in Belize, Jacques Cousteau told Phil Dustan that he suspected humans were having a negative impact on coral reefs. Dustan–a young ocean ecologist who had worked in the lush coral reefs of the Caribbean and Sinai Peninsula–found this difficult to believe. It was December 1974. But Cousteau was right. During the following three-plus decades, Dustan, an ocean ecologist and biology professor at the...

ESA Opens Landsat Archives
2011-11-24 04:23:39

Over 30 years of archived data from the US Landsat Earth-observing satellites are now available, free of charge. The majority of these products are unique to ESA´s archive and have never before been accessible anywhere else by the scientific user community. In its archives, ESA holds around two million products that cover Europe and North Africa. The total amount of data available is worth about 450 terabytes — that´s equivalent to about 900 000 hours of audio recorded at...

Image 1 - First Round Of Thermal Vacuum Testing For Landsat's TIRS Instrument
2011-11-02 09:03:23

[ Watch the Video ] The Thermal Infrared Sensor (TIRS) that will fly on the next Landsat satellite came out of its first round of thermal vacuum testing Tuesday, October 4 at NASA's Goddard Space Flight Center, Greenbelt, Md. The two-month test marked the first time engineers evaluated the fully-assembled instrument at its normal operating temperature, a frigid 43 Kelvin (-382° F). The verdict is that TIRS is living up to its design and even exceeding expectations in some areas. The...

Word of the Day
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.