{"id":13501,"date":"2018-11-19T18:33:04","date_gmt":"2018-11-19T10:33:04","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/nasa-picks-jezero-crater-landing-site-for-next-mars-rover\/"},"modified":"2018-11-19T18:33:04","modified_gmt":"2018-11-19T10:33:04","slug":"nasa-picks-jezero-crater-landing-site-for-next-mars-rover","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/nasa-picks-jezero-crater-landing-site-for-next-mars-rover\/","title":{"rendered":"NASA picks Jezero Crater landing site for next Mars rover"},"content":{"rendered":"

STORY WRITTEN FOR CBS NEWS & USED WITH PERMISSION<\/p>\n

\"\"
On ancient Mars, water carved channels and transported sediments to form fans and deltas within lake basins. Examination of spectral data acquired from orbit show that some of these sediments have minerals that indicate chemical alteration by water. Here in Jezero Crater delta, sediments contain clays and carbonates. This false-color image combines information from two instruments on NASA\u2019s Mars Reconnaissance Orbiter, the Compact Reconnaissance Imaging Spectrometer for Mars and the Context Camera.
Credits: NASA\/JPL-Caltech\/MSSS\/JHUAPL<\/figcaption><\/figure>\n

After years of analyses and debate, NASA announced Monday that the agency\u2019s next Mars rover will land on or near an ancient river delta where water once flowed into a 30-mile-wide, 1,600-foot-deep crater to search for signs of ancient microbial life and to continue ongoing studies of the red planet\u2019s history and evolution.<\/p>\n

Laying the groundwork for future robotic missions and eventual human flights, the Mars 2020 rover also will test technology designed to extract oxygen from the martian atmosphere and to cache rock and soil samples in the Jezero Crater landing site for possible return to Earth aboard a future spacecraft.<\/p>\n

The launch window for the new rover opens on July 17, 2020, setting up a landing on Feb. 18, 2021.<\/p>\n

\u201cThe landing site at Jezero Crater offers geologically rich terrain with landforms reaching as far back as 3.6 billion years and could potentially answer important questions in planetary evolution and astrobiology,\u201d Thomas Zurbuchen, associate administrator of NASA\u2019s science mission directorate, told reporters.<\/p>\n

\u201cGetting samples from this unique area will revolutionize how we think about Mars and its ability to harbor life,\u201d he added. \u201cThis decision today could determine what happens in the next decade or more of Mars exploration, both robotic and human. The technologies that we prove here feed forward into a program that gets ever more exciting.\u201d<\/p>\n

The landing site announcement came one week before NASA\u2019s non-roving InSight lander, launched last May, touches down on Mars next Monday to study the planet\u2019s interior structure by placing an ultra-sensitive seismometer on the surface and hammering temperature sensors into the crust.<\/p>\n

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Artist\u2019s concept of the Mars 2020 rover. Credit: NASA\/JPL-Caltech<\/figcaption><\/figure>\n

Modeled after NASA\u2019s hugely successful Curiosity rover, which landed in Gale Crater in August 2012, the Mars 2020 rover will weigh roughly the same, about one ton, feature the same nuclear power pack and use the same dramatic \u201csky crane\u201d entry, descent and landing system in which a rocket-powered carrier lowers the rover to the surface on a tether.<\/p>\n

The 2020 rover originally was projected to cost around $1.9 billion, some $600 million less than Curiosity. It now is expected to cost roughly the same.<\/p>\n

But the new rover features different instruments and a major upgrade known as terrain relative navigation. As it descends toward the martian surface, the system will assess the surface below and actively guide the spacecraft to avoid hazardous cliffs, boulders or \u201csand traps\u201d that could prove difficult to drive through.<\/p>\n

The Jezero Crater landing site features all three.<\/p>\n

\u201cThis selection is dependent upon additional and extensive analysis of \u2026 terrain relative navigation, or TRN,\u201d Zurbuchen said. \u201cIt is the first time we use this system integrated with the entry, descent and landing process. We\u2019re really excited about it. TRN will enable the sky crane descent stage, the rocket powered system that carries the rover down to the surface, to avoid hazardous areas.\u201d<\/p>\n

An independent review board will assess the landing system and report to NASA in the fall of 2019, \u201cnot because we have any doubt about using TRN,\u201d Zurbuchen said, \u201cbut to be absolutely sure we\u2019re ready to go with this exciting technology.\u201d<\/p>\n

Planetary scientists began debating possible landing sites for the Mars 2020 rover five years ago, whittling down a list of more than 60 candidate sites to just four. After a final round of discussions last month, Zurbuchen selected Jezero, a 30-mile-wide, 1,600-foot-deep crater at 18 degrees north latitude.<\/p>\n

Based on imagery and other data collected by Mars orbiters, scientists believe the crater was filled with an 820-foot-deep lake between 3.5 billion and 3.9 billion years ago. The lake was fed by a river that flowed into and then out of the crater, leaving a distinct delta fanning out across the terrain.<\/p>\n

\u201cLakes on Earth are both very habitable and inevitably inhabited, so that\u2019s the first attraction,\u201d said Ken Farley, Mars 2020 project scientist at NASA\u2019s Jet Propulsion Laboratory. \u201cThe second attraction is a delta is extremely good at preserving biosignatures, any evidence of life that might have existed in the lake water or at the interface between the sediment and the lake water.\u201d<\/p>\n

The delta also could preserve evidence of microbial life that originated outside the crater and was carried in by the river that fed the lake.<\/p>\n

\u201cSo the delta is a good place for evidence of life to be deposited and then preserved for the billions of years that have elapsed since this lake was present,\u201d Farley said.<\/p>\n

But he cautioned the spacecraft will not look for signs of present life \u201cbecause currently, the surface of Mars is too cold, it\u2019s too dry and it has too much radiation for life as we know it to survive.\u201d<\/p>\n

\u201cBut it wasn\u2019t always that way,\u201d he said. \u201cFor reasons that are not yet known, prior to about three-and-a-half billion years ago, Mars\u2019 climate was very different, there was clearly flowing water on the surface of the planet. As we currently understand life, it requires liquid water. And so all things point to the idea we should be looking at ancient Mars for a surface habitable environment.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

STORY WRITTEN FOR CBS NEWS & USED WITH PERMISSION On ancient Mars, water carved channels and transported sediments to form fans and deltas within lake basins. Examination of spectral data acquired from orbit show that some of these sediments have minerals that indicate chemical alteration by water. Here in Jezero Crater delta, sediments contain clays and carbonates. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[1183,1631,367,1761,1714,190,1561,1563],"class_list":["post-13501","post","type-post","status-publish","format-standard","hentry","category-news","tag-jet-propulsion-laboratory","tag-jezero-crater","tag-mars","tag-mars-2020","tag-mars-rover","tag-nasa","tag-planetary-science","tag-solar-system"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13501"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=13501"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13501\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=13501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=13501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=13501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}