USGS Releases Landsat Analysis Ready Data

USGS Releases Landsat Analysis Ready Data

Improvements to the quality and usability of Landsat satellite data have been made with the release of a new USGS product called Landsat Analysis Ready Data (ARD), which will help reduce the time needed to process and analyze data and imagery, a significant advantage to scientists studying landscape changes, including changes from wildfires, hurricanes, vegetation cover, drought and other events.

Apollo 4 Test Flight Celebrates 50th Anniversary

Apollo 4 Test Flight Celebrates 50th Anniversary

On Nov. 9, 1967, the uncrewed Apollo 4 test flight made a great ellipse around Earth as a test of the translunar motors and high-speed entry required of a crewed flight returning from the moon. A 70-millimeter camera was programmed to look out a window toward Earth and take a series of photographs from high apogee.