ESA's Earth Explorer missions address pressing Earth-science questions, advancing our understanding of how Earth works and contributing to climate change issues.
Arctic sea ice thickness, CryoSat
Unique 3D view of Antarctica with 250 million measurements, CryoSat Gravity and oceanology, GOCE
Magnetic field of Earth’s crust, Swarm
Salt content in water (grams/liter), SMOS
Superficial soil moisture index from 0 (dry) to 1 (wet), SMOS