QuickTime VR of TOPEX/Poseidon

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

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

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 4 at Vandenberg Air Force Base carrying the Jason-3 spacecraft. Liftoff was at 10:42 a.m. PST (1:42 p.m. EST).

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 ...

Mission team members perform acoustic tests of the Sentinel-6 Michael Freilich satellite in a chamber outfitted with giant speakers that blast the spacecraft with sound. This is to ensure that the ...

This is an artist's concept of the Sentinel-6 Michael Freilich spacecraft.

Sea levels across the globe are rising as a result of a changing climate — and the rate at which they are rising is accelerating. NASA Science Live was recorded Tuesday, Nov. 17, 2020, and featured...

This artist's concept show Jason-3 over the Amazon.

Sea Surface Height 01/2006-04/2010

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

The Sentinel-6 Michael Freilich satellite sits in front of a testing chamber where mission team members tested whether the spacecraft could endure the loud sounds it will encounter during launch.

SpaceX Falcon 9 Rocket

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

It’s not only water processes that play a role in global sea level rise – ground movements can play a significant role as well.

Sea level rise is an indicator that our planet is warming. When ice on land, such as mountain glaciers or the ice sheets of Greenland or Antarctica, melts, that water contributes to sea level rise.

Mike Davis in front of the faring

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

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

SSH and SST - Pacific Ocean

Decades of Discovery - How altimeters help us every day.

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

The Falcon 9 protective payload fairing containing the Sentinel-6 Michael Freilich satellite

OSTM/Jason-2 Line Drawing

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

Jason-1: JMR instrument