Elysium Planitia, located in the Elysium and Aeolis quadrangles, is a broad plain that straddles the equator of Mars, centered at. It lies to the south of the volcanic province of Elysium, the second largest volcanic region on the planet, after Tharsis. Elysium contains the major volcanoes Elysium Mons, Albor Tholus and Hecates Tholus. Another more ancient shield volcano, Apollinaris Mons, is situated just to the south of eastern Elysium Planitia. The largest craters in Elysium Planitia are Eddie, Lockyer, and Tombaugh. The planitia also has river valleys—one of which, Athabasca Valles may be one of the youngest on Mars. On the northeast side is an elongated depression called Orcus Patera, and this and some of the eastern plains were imaged in the 1965 Mariner 4 flyby. A 2005 photo of a locale in Elysium Planitia at 5°N, 150°E by the Mars Express spacecraft shows what may be ash-covered water ice. The volume of ice is estimated to be by in size and deep, similar in size and depth to the North Sea. The ice is thought to be the remains of water floods from the Cerberus Fossae fissures about 2 to 10 million years ago. The surface of the area is broken into 'plates' like broken ice floating on a lake. Impact crater counts show that the plates are up to 1 million years older than the gap material, showing that the area solidified much too slowly for the material to be basaltic lava.
Overview
MOLA
Exploration
InSight mission landed in Elysium Planitia on November 26, 2018. It took off from Earth on the 5th May 2018. The probe will study the internal structure of Mars and by so doing improve understanding of the planet's evolution. InSight Mars lander was able to take color pictures from the surface Elysium Planitia and sent them by radio signal back to Earth. During the descent sequence two additional items were jettisoned, the backshell with parachute, and heat shield, and they impacted in the vicinity of the lander. In March 2017, scientists from the Jet Propulsion Laboratory announced that the landing site had been selected. It is located in western Elysium Planitia at. The landing site is about north from where the Curiosity rover is operating in Gale Crater.
