The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight)[1] mission was a roboticlander designed to study the deep interior of the planet Mars.[1][12][13] It was manufactured by Lockheed Martin Space, was managed by NASA's Jet Propulsion Laboratory (JPL),[14] and two of its three scientific instruments were built by European agencies.[15] The mission launched on 5 May 2018 at 11:05:01 UTC aboard an Atlas V-401 launch vehicle[16] and successfully landed[17] at Elysium Planitia on Mars on 26 November 2018 at 19:52:59 UTC.[18][19][16][20]InSight was active on Mars for 1440 sols (1480 days; 4 years, 19 days).
InSight's objectives were to place a seismometer, called Seismic Experiment for Interior Structure (SEIS), on the surface of Mars to measure seismic activity and provide accurate 3D models of the planet's interior; and measure internal heat transfer using a heat probe called HP3 to study Mars' early geological evolution.[21] This was intended to provide a new understanding of how the Solar System's terrestrial planets – Mercury, Venus, Earth, Mars – and Earth's Moon formed and evolved.
The lander was originally planned for launch in March 2016.[13][22] An instrument problem delayed the launch beyond the 2016 launch window. NASA officials rescheduled the InSight launch to May 2018[23] and during the wait the instrument was repaired. This increased the total cost from US$675 million to US$830 million.[24]
InSight successfully landed on Mars on 26 November 2018. Due to excessive dust on its solar panels preventing it from recharging, NASA put InSight in low-power mode for detecting seismic events in July 2022 and continued monitoring the lander through the operational period ending in December 2022.[25][26] On 20 December 2022, NASA announced that the InSight lander had lost communications with Earth on 15 December 2022, with the end of the mission being declared on 21 December 2022.[6][7]
^"InSight Lithograph"(PDF). NASA. July 2015. LG-2015-07-072-HQ. Archived from the original(PDF) on 9 February 2017. Retrieved 10 March 2016. This article incorporates text from this source, which is in the public domain.
^Gov, Mars. Nasa. "About InSight's Launch". Nasa's Insight Mars Lander. NASA. Archived from the original on 9 September 2018. Retrieved 8 February 2018. This article incorporates text from this source, which is in the public domain.