
First landing: 25 May 2008Status: Not working any more
Phoenix and InSight landers
Image: NASA/JPL-Caltech
Main spot on Mars:Elysium Planitia
Phoenix landed in 2008 and confirmed that there is water ice just under the surface. InSight, built on Phoenix's design, landed in 2018. Its robotic arm placed a seismometer and a heat probe on the ground.

The story
Why did it go?
Phoenix was sent to the icy plains near the north pole of Mars to dig for water ice. InSight was sent to study the inside of Mars by taking the planet's "pulse, temperature and reflexes".
Phoenix landed in 2008 and confirmed that there is water ice just under the surface. InSight, built on Phoenix's design, landed in 2018. Its robotic arm placed a seismometer and a heat probe on the ground.
(opens larger view)Phoenix photographed itself on the plains of the far north of Mars.
Image: NASA/JPL-Caltech/University of Arizona/Texas A&M University
By the numbers
The mission in numbers
- first launch
- 2007
- type of mission
- Robotic
- objects listed as left behind
- 4
Timeline
The journey, step by step
4 August 2007
First launch
25 May 2008
First landing
15 December 2022
The last mission ends
Still there today
What did it leave behind?
- Status: Not working any more
Phoenix lander
Landed on 25 May 2008. As winter came to the Arctic there was too little sunlight to keep its batteries charged, and its last signal came on 2 November 2008.
- Status: Not working any more
InSight lander
Landed on 26 November 2018. Dust slowly covered its solar panels until it had too little power, and its last contact was on 15 December 2022.
- Status: Not working any more
InSight seismometer
Set down on the ground by InSight's robotic arm.
- Status: Not working any more
InSight heat flow probe
Set down on the ground by InSight's robotic arm.
In pictures
Take a closer look
(opens larger view)01 / The Phoenix landing site from orbit, almost ten years later. Dust has covered much of it.
(opens larger view)02 / InSight seen from orbit in 2019. The small bright dot is its seismometer cover.
(opens larger view)03 / New craters from a meteoroid impact in 2021, the first impact InSight felt.
Science legacy
What did we learn?
Phoenix found ice and traces of a chemical called perchlorate in the soil. InSight's measurements showed that lumps of debris from ancient impacts are scattered through the Martian mantle.
(opens larger view)Illustration: InSight with its seismometer and heat probe on the ground.
Image: NASA/JPL-Caltech
Did you know?
InSight even recorded the low rumble of wind blowing across it.
Sources and fact-check
- NASA Science: InSight
- NASA Science: Phoenix
- JPL: Mars Phoenix Lander Finishes Successful Work on Red Planet (10 November 2008)
- JPL: NASA Finishes Listening for Phoenix Mars Lander (1 December 2008)
- JPL: NASA Retires InSight Mars Lander Mission After Years of Science (21 December 2022)
- NSSDCA: InSight (2018-042A)
- Golombek et al. (2020), Location and Setting of the Mars InSight Lander, Earth and Space Science