Open main menu

Elysium Planitia, located in the Elysium and Aeolis quadrangles, is a broad plain that straddles the equator of Mars, centered at 3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7.[1] 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.

Elysium Planitia
Elysium Planitia topo.jpg
MOLA topographical map of Elysium Planitia.
Coordinates3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7Coordinates: 3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7

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 north east side is an elongated depression called Orcus Patera, and this and some of the eastern plains were imaged in the 1965 Mariner 4 flyby.[2]

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 800 km (500 mi) by 900 km (560 mi) in size and 45 m (148 ft) deep, similar in size and depth to the North Sea.[3] 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 (see below). 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.[4]

Contents

ExplorationEdit

NASA's InSight mission landed on Elysium Planitia on November 26, 2018.[5] 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.

First images of Elysium Planitia from InSight's Instrument Context Camera (ICC, left) and the Instrument Deployment Camera (IDC, right)

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 4°30′N 135°54′E / 4.5°N 135.9°E / 4.5; 135.9 (InSight landing site).[6] The landing site is about 600 km (370 mi) north from where the Curiosity rover is operating in Gale Crater.[7]

All the originally proposed landing sites are in Elysium Planitia; this ellipse, located at 4°30′N 136°00′E / 4.5°N 136°E / 4.5; 136, represents the site finally selected.
Image footprints by HiRise on Mars Reconnaissance Orbiter for studying the planned Insight landing ellipse. From east to west the scale is about 160 km (100 mi)

Fractured groundEdit

MesasEdit

ConesEdit

GalleryEdit

Interactive Mars mapEdit

Acidalia PlanitiaAcidalia PlanitiaAlba MonsAmazonis PlanitiaAonia TerraArabia TerraArcadia PlanitiaArcadia PlanitiaArgyre PlanitiaElysium MonsElysium PlanitiaHellas PlanitiaHesperia PlanumIsidis PlanitiaLucas PlanumLyot (crater)Noachis TerraOlympus MonsPromethei TerraRudaux (crater)Solis PlanumTempe TerraTerra CimmeriaTerra SabaeaTerra SirenumTharsis MontesUtopia PlanitiaValles MarinerisVastitas BorealisVastitas Borealis 
 Interactive imagemap of the global topography of Mars. Hover your mouse to see the names of over 25 prominent geographic features, and click to link to them. Coloring of the base map indicates relative elevations, based on data from the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor. Reds and pinks are higher elevation (+3 km to +8 km); yellow is 0 km; greens and blues are lower elevation (down to −8 km). Whites (>+12 km) and browns (>+8 km) are the highest elevations. Axes are latitude and longitude; Poles are not shown.
(See also: Mars Rovers map) (viewdiscuss)

See alsoEdit

ReferencesEdit

  1. ^ "Elysium Planitia". Gazetteer of Planetary Nomenclature. USGS Astrogeology Science Center. Retrieved 2018-05-07.
  2. ^ Williams, Dave; Friedlander, Jay. "The Orcus Patera region on Mars". Mars - Mariner 4. NASA. Retrieved December 20, 2015.
  3. ^ Young, Kelly (2005-02-25). "'Pack ice' suggests frozen sea on Mars". New Scientist. Retrieved 2007-01-30.
  4. ^ John B. Murray, JB; Muller, JP; Neukum, G; Werner, SC; Van Gasselt, S; Hauber, E; Markiewicz, WJ; Head Jw, 3rd; et al. (17 March 2007). "Evidence ... for a frozen sea close to Mars' equator". Nature. 434 (7031): 352–355. Bibcode:2005Natur.434..352M. doi:10.1038/nature03379. PMID 15772653.
  5. ^ "Landing Status | Landing – NASA's InSight Mars Lander". NASA's InSight Mars Lander.
  6. ^ Golombek, M.; et al. (2017). Selection of the 2018 Insight Landing Site. 48th Lunar and Planetary Science Conference. 20–24 March 2017. The Woodlands, Texas. Bibcode:2017LPI....48.1515G. LPI Contribution No. 1964, id.1515.
  7. ^ "InSight's Landing Site: Elysium Planitia". NASA. 25 January 2018. Retrieved 1 February 2018.

External linksEdit