Scientists speculate that sublimation of methane may be causing the plateau material to erode along the face of the cliffs, causing them to retreat south and leave the plains of Piri Planitia
in their wake.
Giovanni Leone, a specialist in planetary volcanism in the research group of ETH professor Paul Tackley, has examined intensively the structure of these canyons and their outlets into the Ares Vallis and the Chryse Planitia
, a massive plain on Mars' low northern latitude.
Hence, astronauts are: landing on the Golden Plain, Chryse Planitia
, which is a vast and stony desert, a graveyard of shadows cast sanguine in their repose.
On 2007 Nov 2 (Ls = 341[degrees]), Casquinha, Sanchez (illustrated elsewhere (4)), and Tyler (Figure 8) imaged a small bright dust core over Chryse Planitia
(telescopic northern Xanthe), and two others nearby: one N.
Indeed, at 0deg longitude there is a large impact crater, Caloris Planitia
, which may be the cause of the permanent deformation.
Similar landforms have been documented on Mars, particularly in the northern plains such as Utopia Planitia
. Based on the geomorphological analogues of the Tuktoyaktuk Peninsula, it has been suggested that periglacial processes are also operating in the northern plains of Mars and that substantial ground-ice may be present (Soare et al.
The surface is generally divided into several major types of features, with the most dominant being volcanic plains (planitia
) which cover approximately 80% of the surface.
The pounds 45m lander was scheduled to put down in a near-equatorial region of the planet known as Isidis Planitia
. Now members of the Beagle 2 team have reconstructed what might have happened to spacecraft as it touched down.
The pounds 45 million robotic contraption was meant to put down in a near-equatorial region of the planet known as Isidis Planitia
but all contact was lost with the mother ship on December 19.
Beagle's final resting place appears to be a one kilometre-wide crater, which could be hundreds of metres deep, that lies like a bullseye at the centre of the target area on Isidis Planitia
near the Martian equator.
Beagle 2 is heading for Isidis Planitia
, north of the Martian equator where scientists believe there was once water.
They show Acidalia Planitia
(top), Elysium Planitia
and Syrtis Major Planum (center images), and the Tharsis volcanic region (bottom).