Video

GRACE-FO

A joint mission between NASA and the German Research Centre for Geosciences (GFZ), the GRACE mission – Gravity Recovery and Climate Experiment – launched in 2002 and collected data on fluctuations in Earth’s gravity until October 2017, detailing changes to ice sheets and groundwater, and helping revolutionise the science of the so-called cryosphere.

Video

Landsat 8

The US Geological Survey’s Landsat missions introduced the era of civil Earth observation and have delivered an unbroken 40-year multispectral moderate-resolution data series. The USGS can reasonably claim “a record unmatched in quality, detail, coverage and value”.