Landsat satellites have been observing Earth’s land surfaces consistently for over 40 years, providing the longest continuous space-based record of Earth’s land in existence. All Landsat data held in the USGS archives are publicly available at no charge.
A joint USGS/NASA webinar recored on Oct. 8, 2014 provides viewers with information about:
• Landsat data applications and usage
• Basic technology of Landsat missions
• How to find and download data for user-defined area of interest
• Educational resources available for learning and teaching about Landsat
NASA and USGS worked jointly to present to the over 100 participants of this NASA EarthData-hosted a webinar. NASA EarthData’s Jennifer Brennan hosted speakers Laura Rocchio, Linda Owen, and Jeannie Allen from the Landsat team. The recorded webinar can be watched on the NASA EarthData YouTube channel.

Above the Earth, Below the Surface: Landsat’s Role in Monitoring Water Quality
Safeguarding freshwater resources is crucial, and while scientists use a variety of ground-based techniques to gauge water quality, the Landsat program has provided water quality data from orbit for decades.