Remote Sensing
The method of detecting and tracking an area’s physical characteristics by analyzing its reflected and emitted radiation from a distance is known as remote sensing (typically from satellite or aircraft).
Overview Effect: Quotes from Astronauts After Seeing the Earth from Space
The Overview Effect is a shift in awareness by astronauts seeing Earth from outer space as a “tiny, fragile ball of life.”
How Normalized Difference Water Index is Used to Map Flooding
The Normalized Difference Water Index (NDWI) is a calculation used in remote sensing to monitor and measure the amount of moisture in vegetation and surface water bodies.
Landsat: Longest Running Earth Imagery Program
With satellites in orbit since 1972, the Landsat program is the longest running Earth observation program.
Lidar Explained
Lidar is a technology developed to map the elevation of features on and below the surface of the Earth.
Views of Earth from Space
Over the decades, Earth has been captured from near and far by astronauts and spacecraft from space.