{"id":26748,"date":"2014-09-25T13:35:28","date_gmt":"2014-09-25T05:35:28","guid":{"rendered":"https:\/\/canadianinquirer.net\/v1\/?p=26748"},"modified":"2014-09-25T11:34:25","modified_gmt":"2014-09-25T03:34:25","slug":"nasas-maven-explorer-arrives-at-mars-after-voyage-of-nearly-a-year-enters-red-planets-orbit","status":"publish","type":"post","link":"https:\/\/canadianinquirer.net\/v1\/2014\/09\/25\/nasas-maven-explorer-arrives-at-mars-after-voyage-of-nearly-a-year-enters-red-planets-orbit\/","title":{"rendered":"NASA\u2019s Maven explorer arrives at Mars after voyage of nearly a year, enters red planet\u2019s orbit"},"content":{"rendered":"
\"<\/a>
Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, engineers and technicians prepare the Mars Atmosphere and Volatile Evolution, or MAVEN, spacecraft for encapsulation inside its payload fairing. Photo from NASA \/ Kim Shiflett<\/a>.<\/figcaption><\/figure>\n

CAPE CANAVERAL, Fla.\u2014NASA\u2019s Maven spacecraft arrived at Mars late Sunday after a 442 million-mile (711 million kilometre) journey that began nearly a year ago.<\/p>\n

The robotic explorer fired its brakes and successfully slipped into orbit around the red planet, officials confirmed.<\/p>\n

\u201cThis is such an incredible night,\u201d said John Grunsfeld, NASA\u2019s chief for science missions.<\/p>\n

Now the real work begins for the $671 million mission, the first dedicated to studying Mars\u2019 upper atmosphere.<\/p>\n

Flight controllers in Colorado will spend the next six weeks adjusting Maven\u2019s altitude and checking its science instruments. Then Maven will start probing the upper atmosphere of Mars. The spacecraft will conduct its observations from orbit; it\u2019s not meant to land.<\/p>\n

Scientists believe the Martian atmosphere holds clues as to how Earth\u2019s neighbour went from being warm and wet billions of years ago to cold and dry. That early wet\u00a0world\u00a0may have harboured microbial life, a tantalizing question yet to be answered.<\/p>\n

NASA launched Maven last November from Cape Canaveral, the 10th U.S. mission sent to orbit the red planet. Three earlier ones failed, and until the official word came of success late Sunday night, the entire team was on edge.<\/p>\n

\u201cI don\u2019t have any fingernails any more, but we\u2019ve made it,\u201d said Colleen Hartman, deputy director for science at Goddard Space Flight Center in Greenbelt, Maryland. \u201cIt\u2019s incredible.\u201d<\/p>\n

The spacecraft was clocking more than 10,000 mph (16,000 kph) when it hit the brakes for the so-called orbital insertion, a half-hour process. The\u00a0world\u00a0had to wait 12 minutes to learn the outcome, once it occurred, because of the lag in spacecraft signals given the 138 million miles (222 million kilometres) between the two planets on Sunday.<\/p>\n

\u201cBased on observed navigation data, congratulations, Maven is now in Mars orbit,\u201d came the official announcement. Flight controllers applauded the\u00a0news\u00a0and shook hands; laughter filled the previously tense-filled room.<\/p>\n

Maven joins three spacecraft already circling Mars, two American and one European. And the traffic jam isn\u2019t over: India\u2019s first interplanetary probe, Mangalyaan, will reach Mars in two days and also aim for orbit.<\/p>\n

Maven\u2019s chief investigator, Bruce Jakosky of the University of Colorado\u2019s Laboratory for Atmospheric and Space Physics in Boulder, hopes to learn where all the water on Mars went, along with the carbon dioxide that once comprised an atmosphere thick enough to hold moist clouds.<\/p>\n

The gases may have been stripped away by the sun early in Mars\u2019 existence, escaping into the upper atmosphere and out into space. Maven\u2019s observations should be able to extrapolate back in time, Jakosky said.<\/p>\n

Maven\u2014short for Mars Atmosphere and Volatile Evolution Mission\u2014will spend at least a year collecting data. That\u2019s a full Earth year, half a Martian one. Its orbit will dip as low as 78 miles (125 million kilometres) above the Martian surface as its eight instruments make measurements. The craft is as long as a school bus, from solar wingtip to tip, and as hefty as a sports utility vehicle.<\/p>\n

Maven will have a rare brush with a comet next month.<\/p>\n

The nucleus of newly discovered Comet Siding Spring will pass 82,000 miles (132,000 million kilometres) from Mars on Oct. 19. The risk of comet dust damaging Maven is low, officials said, and the spacecraft should be able to observe Siding Spring as a science bonus.<\/p>\n

Lockheed Martin Corp., Maven\u2019s maker, is operating the mission from its control centre at Littleton, Colorado.<\/p>\n

This is NASA\u2019s 21st shot at Mars and the first since the Curiosity rover landed on the red planet in 2012. Just this month, Curiosity arrived at its prime science target, a mountain named Sharp, ripe for drilling. The Opportunity rover is also still active a decade after landing.<\/p>\n

All these robotic scouts are paving the way for the human explorers that NASA hopes to send in the 2030s. The space agency wants to understand as much about the red planet as possible before it sends people there.<\/p>\n

Online<\/h6>\n

NASA:\u00a0http:\/\/mars.nasa.gov\/maven\/<\/a><\/p>\n

University of Colorado:\u00a0http:\/\/lasp.colorado.edu\/home\/maven\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

CAPE CANAVERAL, Fla.\u2014NASA\u2019s Maven spacecraft arrived at Mars late Sunday after a 442 million-mile (711 million kilometre) journey that began …<\/p>\n","protected":false},"author":44,"featured_media":26749,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5742],"tags":[],"class_list":["post-26748","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science-2","mauthors-marcia-dunn","mauthors-the-associated-press"],"_links":{"self":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts\/26748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/users\/44"}],"replies":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/comments?post=26748"}],"version-history":[{"count":0,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts\/26748\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/media\/26749"}],"wp:attachment":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/media?parent=26748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/categories?post=26748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/tags?post=26748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}