Earthshots introduces remote sensing by showing how satellite imagery is used to track change over time.
The Landsat series of Earth-observing satellites has acquired data for monitoring the planet’s landmasses since 1972. The vast archive containing millions of Landsat scenes is managed at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center in Sioux Falls, SD. The images displayed in Earthshots are examples of Landsat data that help scientists worldwide understand more about how both people and nature are changing the landscape.
(Source: Flowing Data)
The mysterious bright spots on the dwarf planet Ceres are better resolved in a new sequence of images (NASA created this animation using those images) taken by NASA's Dawn spacecraft on May 3 and 4, 2015. The images were taken from a distance of 13,600 km. and at a resolution of 1.3 km. per pixel.
In the closet-yet view, the brightest spots within a crater on the North Hemisphere are revealed to be composed of many smaller spots. Their exact nature, however, remains unknown.
The U.S. Geological Survey published new topographical maps of the moon that it prepared for NASA.
The map is a close-up of USGS’s Mercator projection map. The vast flat space to the right is the Oceanus Procellarum, Latin for “Ocean of Storms,” a large basaltic plain that was formed by ancient volcanic eruptions. The map also shows Mare Orientale, an impact crater that was partially flooded by basalts.
(Source: Know More)