TOPEX/Poseidon Ground Tracks

For NASA engineer Shannon Statham, building spacecraft is all about being creative.

OSTM/Jason-2 Spacecraft

TOPEX/Poseidon Poster (no text)

These photos were taken during the Payload Attach Fitting (PAF) mating operation with Jason-1. (11/14/01) Photos: Scott Michel

The Jason-2 satellite sees something brewing in the Pacific. Researchers say it could be a significant El Niño with implications for global weather and climate.

For NASA JPL engineer Parag Vaze, studying Earth’s rising ocean has been a career three decades in the making.

Ariane 42P launch vehicle

For NASA scientist Severine Fournier, studying our planet knows no borders.

The joint U.S.-European Sentinel-6 Michael Freilich is the next in a line of Earth-observing satellites that will collect the most accurate data yet on sea level and how it changes over time. With ...

Jason-3 Ready for Launch

Jason-1 readies for launch in its bay at Vandenberg, AFB (10/31/01)

Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate, as previously thought, according to a new study based on 25 years of NASA and European satelli...

The ocean-observing Sentinel-6 Michael Freilich satellite launched from Vandenberg Air Force Base in California aboard a SpaceX Falcon 9 rocket on Nov. 21, 2020 at 12:17 p.m. EST

It's hard to "see" sea level rise by just looking at the ocean, but its effects are very real.

Jason-1 in full flight configuration

OSTM/Jason-2 Artist's Concept

Inside half of the Delta Clam shell faring

Jason-1 Line Drawing

Jason-3 Lifts Off!

SSH and SST - Global

These photos were taken during the Dual Payload Attach Fitting (DPAF) mating operation with Jason-1. (11/13/01) Photos: Scott Michel

Sentinel-6 Michael Freilich will join a long-standing family of Earth observing satellites from NASA and European partners.

NASA and its partners announced the renaming of the mission, previously known as Sentinel-6A/Jason-CS.

Greenland and Antarctica are home to most of the world's glacial ice – including its only two ice sheets – making them areas of particular interest to scientists.

Altimeter Mission Series