TOPEX/Poseidon Launch

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.

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

Recorded live launch broadcast of Sentinel-6 Michael Freilich

Jason-1 launch images

Sea Surface Height - Global Average from 1993 - 2011.

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

SSH and SST - Indian Ocean

On Aug. 26, 2015 at 9:30 a.m. PT, NASA hosted a media teleconference to discuss recent insights on sea level rise and the continuing challenge of predicting how fast and how much sea level will ris...

Jason-1 Launch - Artists Concept

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

Jason-3

This artist's concept shows Jason-3 over the California coast.

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 ...

Launch preparations are progressing! (11/21/01) Photos: Stacy Mitchell of John Hopkins APL/TIMED project

This illustration shows the Sentinel-6 Michael Freilich spacecraft in orbit above Earth with its deployable solar panels extended.

Jason-3 Lifts Off!

OSTM/Jason-2 - All instruments plus data animation

TOPEX/Poseidon Instruments

Experts from NASA, ESA, EUMETSAT, and NOAA discuss the upcoming launch of Sentinel-6 Michael Freilich in a recorded live broadcast

Launch preparations are progressing! (11/21/01) Photos: Stacy Mitchell of John Hopkins APL/TIMED project

QuickTime VR of TOPEX/Poseidon

SpaceX Falcon 9 rocket with the Sentinel-6 Michael Freilich satellite is lifted to vertical at Space Launch Complex 4

Headed for Orbit!

Oceans of Climate Change

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