Categories: Mars

Northern Spring Approaches on Mars: Will Phoenix Phone Home?

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I was just thinking of the Phoenix lander earlier this week, wondering if our little buddy was surviving the Martian winter when, boom: via Twitter came this:

@MarsPhoenix “Spring has sprung in the north hemi(sphere) of Mars! Team is waiting for longer daylight hours, around mid-Jan., to ‘listen’ for our lander.”

Then, via another Tweet from @doug_ellison, (Doug Ellision) I found out the folks at Unmannedspaceflight.com have been thinking about the Phoenix lander, too. Phil Stooke from the UMSF crew had searched for Phoenix in the latest images released by the HiRISE camera on board the Mars Reconnaissance Orbiter, taken in August 2009 and found of glimmer of hope the lander was still visible among the CO2 frost and “snow.” See the comparison above of the landing site from Dec. 2008 to August 2009. Then Emily Lakadawalla of the Planetary Society Blog took things one step further and made a little “movie” of HiRISE images of Phoenix during the different seasons on Mars (check out her extensive post here.) Hope springs eternal for many of us as to whether we’ll ever hear from Phoenix again, and time will only tell. But its nice to know there were lots of us with Phoenix on the brain this week; kind of a shared experience! (except everyone else did all the work….) See below for more closeups of Phoenix’s winter surroundings from UMSF.

Phoenix landing site, August, 2009. Credit: NASA/JPL/U of Arizona. Annotations by Phil Stooke

Phil wrote on UMSF that it took him several tries to match up the landing site from the two different HiRISE images. “When the two sides of this comparison are blinked a thousand features match up, not just a dozen. This is a lesson to people searching for Mars Polar lander – it’s easy to be fooled! … The parachute and backshell are invisible, the heatshield almost so, but the lander’s clear.”

And below is one of just the lander from July 2009. Unfortunately, HiRISE has been unable to take any recent images of Phoenix or any other location on Mars because of MRO being in an extended safe mode. It went into safe mode over 9 weeks ago, and mission engineers have yet to determine the cause. They are playing it safe and want to get to the root cause, since this has happened four times over the course of the mission. Latest word reported in the Arizona Star is that if the system reboots itself enough times, the memory of the main computer could be reset, and basically wiped. That would be bad. “Engineers are now working to create a safeguard against that worst-case scenario as well as finding the cause of the mysterious voltage signals,” the Star said.

Phoenix close up from July 2009. Annotated by Phil Stooke.

See all the Mars Phoenix lander images from HiRISE here.

Thanks again Phil at UMSF and Emily at the Planetary Society

Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/

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