On the way to the Martian delta
On the way to the Martian delta
The Jezero crater, officially confirmed as the destination of the Mars 2020 rover.
He had all the numbers to be the final winner in the race to receive the new terrestrial envoy, especially when previously the mission team had decided clearly for this option. It would have been, therefore, unexpected that the final meeting between these first and managers of the POT to decide the final place had a different result, and it was. The forecasts and the crater were fulfilled Jezero will be where this ambitious rover, heir of Curiosity In your base but more oriented to the search of chemical signals of old Martian life, try to make history.
"It offers a geologically rich terrain, with geological formations that date back to 3,600 million years, and which could potentially answer important questions in planetary evolution and astrobiology "explains Thomas Zurbuchen, associate administrator of the Directorate of Scientific Missions at NASA. "Obtaining samples from this unique area will revolutionize our way of thinking about Mars and its capacity to house life"
Home to an ancient delta that once emerged into what was once a large lake, it could have collected and preserved among its layers of ancient sediments organic molecules and other potential signs of microbial life. It also offers at least five different types of rocks, including clays and carbonates that have a high potential for preserving biological signatures. In addition, being material dragged by the waters from areas outside the crater, it becomes a treasure chest that stores samples from a very large area. It is so rich in geological diversity that it is a challenge for the delicate landing maneuver. However, the area is so promising that the risk is now considered acceptable, thanks to advances in descent and landing technologies.
"The community of Mars has long coveted the scientific value of sites such as the Jezero crater, and a previous mission planned to go there, but the challenges with safe landing were considered prohibitive."explains Ken Farley, project scientist for Mars 2020 at JPL."But what was once out of reach is now conceivable, thanks to engineering team and advances in entry, descent and landing technologies"Among them the new TRN (Terrain Relative Navigation), which will equip "sky crane", the propelled system
by rockets that brings the vehicle to the surface, the ability to avoid areas
dangerous.In this final fight the hills were left out Columbia, in the crater Gusev, and that is the resting place of the rover Spirit. His findings from ancient hot springs made the idea that the rover Mars 2020 revisitara the area had a strong impulse, to which was added the possibility, symbolic but exciting, that could get to where this first sleeps forever and photograph it. In the end it will not be possible, but without a doubt Jezero and his delta has plenty of reasons to have been the definitive winner.
The TRN will be the new weapon with which it is expected to be able to successfully deposit the rover Mars 2020 in a place that was previously considered too dangerous to attempt. Technological advances like this now allow to reach previously prohibited areas.
See you in Jezero !!!NASA Announces Landing Site for Mars 2020 Rover
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