Elysium Planitia


Also found in: Wikipedia.

Elysium Planitia

(i-liz -ee-ŭm) Mars' second main center of volcanic activity, located on a bulge in the Martian crust about 3 km high and 5312 km in diameter, situated on the planet's equator. It is centered on the areograohic coordinates 2° N latitude, 205° W longitude (see areography). Its principal volcano is Elysium Mons (25° N latitude, 213.1° W longitude), which is 250 km in base diameter and 15 km high. See Mars, volcanoes. In Feb, 2005, scientists examining images of Elysium Planitia taken by the European spacecraft Mars Express noted some that showed plated and rutted features over an extensive area measuring 800 by 900 km. The platelike fractures resemble ice floes seen in Earth's polar regions, leading the scientists to believe that a catastrophic event flooded the area about five million years ago forming a sea that then froze and became covered with dust and volcanic ash. They think it now survives as pack ice just below the Martian surface.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
The NASA lander InSight recently took a snapshot of the flatlands of the Elysium Planitia and it showed some interesting drift clouds backdropped against a Martian sunset.
The CaSSIS view shows InSight as a slightly brighter dot in the centre of the dark patch produced when the lander fired its retro rockets just before touchdown in the Elysium Planitia region of Mars, and disturbed the surface dust.
As a member of the Council of Terrains team, he has also helped select the site for safe landing in the equatorial region of Mars, Elysium Planitia, in a process that lasted four years.
Last month, the InSight lander, which will sample the planet's interior, successfully touched down at Elysium Planitia.
The $993 million lander arrived Monday at its target, a lava plain named Elysium Planitia, for a two-year mission aimed at better understanding how Earth's neighboring planet formed.
The winning candidate is a spot in western Elysium Planitia at 4.5[degrees] north latitude and 135.9[degrees] east longitude.
With InSight's landing at Elysium Planitia, NASA has successfully soft-landed a vehicle on the Red Planet eight times.
LA CANADA FLINTRIDGE, California -- After travelling 300 million miles through the solar system, Nasa's InSight spacecraft descended through the Martian sky on Monday and touched down safely on the smooth surface of Elysium Planitia shortly before noon Pacific time.
InSight arrived on Mars's Elysium Planitia area north of its equator, described as an ideal spot for its flat, rockless surface.
The InSight will operate out of the Elysium Planitia on Mars, and is powered by twin solar arrays, that are about seven feet wide.