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Maja Vallis area. The general pattern of flood and sediment passage towards the NE is clear from the streamlined landforms. Evidence of terracing exposed on the sides of channels is most well developed around 50-51 deg W. The N-S running ridges towards the the east of the figure may be surface expressions of underlying lava flows. A band of Noachian basement is present around 54 deg W, the Maja Vallis channel cuts through this at 18 deg N. The landing ellipse is 240 x 20 km in 16 deg WSW/ENE orientation.
ESA Zeros In On Martian Kennel
London - January 30, 2000 - The Beagle 2 team has selected two potential landing sites on Mars for further study. In the latest issue of the Beagle 2 Bulletin, John Bridges from the Natural History Museum, London, who is leading the landing site study, writes: "The prospective areas are within the Chryse and Tritonis Lacus regions.

Both are at low elevation, which gives more opportunity for the parachutes to brake the descent of Beagle 2.

The latitude of the two sites, about 19 deg N, means that the mission will begin during the Martian late spring, when there is more solar energy to charge batteries and nighttime temperatures are relatively high, making it easier to keep the spacecraft warm.

"Chryse is a region of flood channels which have brought materials from the southern highlands down over the northern plains. "The Maja Vallis channel area in Chryse is of particular interest because Viking and Mars Orbiter images show the presence of some layering in isolated mesas (elevated flat surfaces, like plateau). "Such layers might include hard pans (crust) formed through precipitation of salts from groundwater or ephemeral lakes.

"Tritonis Lacus is on the margin of the Elysium plains and consists of a more eroded landscape. This erosion has left a generally smooth surface which would be suitable for a safe landing."

Selection of the final site will be made in February 2001 based on the outcome of detailed modelling of the landing activity at both sites and after consultation with the scientific community at an international workshop.

"We are reviewing all the images we can get from Mars Global Surveyor (NASA's spacecraft currently in orbit around Mars). The site must be suitable for the science we want to do and be compatible with the entry and descent of Beagle 2," says Colin Pillinger, Principal Investigator for Beagle 2.

"The delivery of Beagle by Mars Express requires complicated manoeuvres which use extra fuel. So the final selection will also take into account extensive studies to make sure that the implications for the spacecraft are acceptable," adds Rudi Schmidt, Mars Express Project Manager.

  • Beagle 2 Home
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    EARTH INVADES MARS
    Beagle Express To Mars Approved
     Paris (AFP) January 17, 2000 - Construction of a European spacecraft to explore Mars will go ahead following approval of a design for the spacecraft and despite uncertainty about what caused the loss of US probes to the red planet, officials said Monday.




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