Whale Census and Habitat

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

Jason-1: JMR instrument

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.

Jason-1: LRA instrument

Jason-1: TRSR instrument

High Resolution Jason-1 launch images

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

OSTM/Jason-2 DORIS

TOPEX/Poseidon Collecting Data

Headed for Orbit!

TOPEX/Poseidon LRA

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

OSTM/Jason-2 Radiometer Antenna

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

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

Growing up in landlocked Zimbabwe, NASA JPL engineer Shailen Desai was far from the ocean but still experienced its effects on the climate. Now, he is contributing to an international effort to tra...

Altimeter Applications - JPL Open House '99

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 Antonov cargo aircraft carrying the Sentinel-6 Michael Freilich satellite touches down on the runway at Vandenberg Air Force Base in California on Sept. 24, 2020. 

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

OSTM/Jason-2 Radiometer Antenna

OSTM/Jason-2 GPSP

Ariane 42P launch vehicle

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.

Jason-3 on the Launch Pad