Phoenix might have stopped sending back pictures of its landing site, up near the north pole of Mars, but that doesn’t mean we’ve heard the last of it, or that it’s not being watched. Last October the amazing HiRISE camera onboard NASA’s Mars reconaissance Orbiter was trained on the Phoenix lander, and some great images were taken of it, sitting on the frosty surface of Mars. I’ve cropped them, colourised some of them, and here they are. Please click on each one to bring up a full-size version.

It’s so great to see Phoenix again! Hope she’s enjoying her long, and well-earned, sleep…

If you look closely you’ll just be able to make out Phoenix at bottom left, the crash-mark of the heatshield top centre, and the backshell and parachute far right. Zoom in on the latter and you can see this…

That’s pretty amazing, but what does Phoenix itself look like when zoomed in on..?

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That’s a fantastic image because, as Doug Ellison pointed out in a Twitter, you can actually see the central parts of Phoenix’s solar arrays. Unbelievable…

But I know what you really want – some colour! Let’s add that…

Wow… look, you can even see the lines connecting the parachute to the backshell…! But what about Phoenix..? Ok, here you go…

… and from a different colour set…

I feel a bit emotional seeing those images… Phoenix was such an exciting, breathless, race-against-time mission that seemed to go by in a flash. I miss it, a lot.

There are some BIG science results coming from Phoenix soon, so keep en eye out for those. In the meantime, I hope you’ve enjoyed seeing Phoenix again. Always good to catch up with old friends, isn’t it?

If death certificates were issued for spaceprobes when their missions ended, then Phoenix’s certificate was effectively written out several days ago, when the decision was finally – and I’m sure reluctantly – taken to stop listening for signals from the lander.

The last attempt to pick up a signal from Phoenix was made on Nov 29th, when the orbiting Odyssey spacecraft cocked an electronic ear towards the north pole and tried to hear something, anything from Phoenix. The attempt was unsuccessful, and there will be no more. This means that the last confirmed signal from Phoenix was detected on Nov 2nd, and the chances of anything more being heard are extremely small.

It makes sense to stop listening for any plaintive beeps and bleeps from Phoenix. The lander is now almost certainly thick with frost, its electronic innards chilled to their core, and it has basically frozen to death in the merciless and brutal martian cold. When the next images of the lander are taken by HiRISE I’m sure they’ll show it standing in an icy landscape, as lifeless as a statue.

And what of the chances that it might reawaken when Spring comes to Green Valley? Well, the chances aren’t good. That brutal cold will physically affect the lander, weakening and even breaking some of its fragile electronic circuits and components, and if enough frost and ice gathers on those fragile solar panel wings they might even snap off and fall to the ground, so you’d have to be an incredible optimist to believe that the “Lazarus Command” will bring Phoenix back to life. But hey, you never know. I’m sure they’ll try. It can’t hurt, can it?

But really, being sensible about it, that’s It. The Phoenix mission is over. It was a heck of a ride while it lasted, but everything ends.

Farewell Phoenix. Sleep well. You’ve earned it.

… kind of…

I was lucky enough to visit and tour JPL recently, and was delighted to find a full-size replica of the lander there. What else was I supposed to do except pose beside it for a photo?

( I know, I know… if you were there you’d be smiling like a cheshire cat, but I hate having my pic taken, ok? )

So… seeing and standing next to that beautifully-crafted model really did bring home a) how big it is, b) how fragile-looking it is, and c) how aesthetically beautiful it is. With those big dragonfly wings it really does look like a robot insect of some kind, more than any other spacecraft I’ve ever seen. The robot arm looks too thin and fragile to even be able to move its own weight, never mind scratch and scrape away at the frigid surface of Mars…

…and all the antennae, aerials and struts on the top look ,ike they’d snap off if someone blew on them… but it all worked on Mars, wonderfully, and looking at that model gave me a new appreciation of just how successful the mission was.

It was hot at JPL, very hot in fact. Everyone was walking around in shirtsleeves and sweating in the bright Californian sunlight. Inside the hall where the Phoenix model stood, surrounded by fascinated and respectful onlookers, it was still very warm despite being air-conditioned, and felt like a hot summer’s day in the UK to this travelling Brit! It was odd to stand there looking at the model and comparing it with what the real thing is going through right now…

I know it’s still standing there, on the floor of Green Valley, probably now surrounded by frost-encrusted rocks, with its solar panels coated in a slowly-thickening crust of tinkling, twinkling ice crystals too… the sky above Phoenix darkens quickly now after a very short day, and any winds that waft across its deck carry with them stinging flakes of snow… the temperature has plunged now too, and if I was to magically transport myself to its side your landing site now would feel more like Narnia in the depths of the Snow Queen’s winter to me than the Arctic tundra it so closely resembles in those landing day photos…

Miss you, Phoenix…

The last red, green and blue filtered images of the surface of Mars taken by Phoenix were returned on Sol 151. I’ve combined them to make a colour frame, and then messed about with it enhanced and manipulated it to create a final “postcard”. So this, then, is Phoenix’s final view of the surface of Mars – or at least my version of it… Click on the image below to see the full size version… and enjoy… come on, let’s celebrate Phoenix’s  brief mayfly life on Mars, and not mourn it!

It’s official – the historic Phoenix mission to the north pole of Mars is over. There has been no word from Phoenix since around Nov 2nd, and with temperatures dropping, darkness descending and Phoenix showing no signs of “phoning home”, NASA has declared the mission complete, and has said they don’t expect to hear from the lander again; there seems very little chance that the “lazarus” command signal could wake the lander up again in spring, because by then the terrible cold will have caused serious damage to its systems and circuitry, literally cracking and shattering its circuit boards and computer hardware, so we have heard our last from Phoenix. No more pictures of dust devils, frost or sunrises; no more animations of the telltale thrupping dementedly from side to side, or of clouds scudding across the sky; no more close-ups of ice beneath the lander’s belly… that’s all folks. Not only has the Fat Lady sung, she’s left the stage, the lights have been turned off and the doors have been locked.

But Phoenix will live on, in her data. Now the scientists will really start to analyse all the science the lander returned during her 5 months on Mars. There will be more announcements made, more press conferences held, more discoveries to be announced. Perhaps there’s proof hiding in the data somewhere that Phoenix did actually find organics in the martian soil… or there’s evidence that the landing site was indeed once habitable. We’ll have to wait and see – and that’s what science, especially planetary science, is all about: waiting and seeing.

This isn’t my last post on Phoenix, not by a long way. But it seems appropriate to end today with the image I’ve put at the top of this post. You’ll see a line of what looks like binary code at the bottom there… this is the last “message” sent back by Phoenix via its incredibly popular Twitter site. What does it say? Well, if you put it into a binary translation website you get a single word:

TRIUMPH!

Aye. Phoenix certainly was that.

So, Farewell Phoenix. We’ll miss you, but we won’t forget you!

There’s a NASA press teleconference going on right now, and the team behind the Phoenix lander has just announced that Phoenix hasn’t been heard of since last Wednesday, and they have declared “End of Mission Operations”, meaning Phoenix has gone to sleep and isn’t expected to wake up again. Sad news, but it was always going to come…

More on this soon…

I’ve just noticed that this blog has now had over 9,000 visits… that’s crazy, really! A huge THANK YOU to you, whether you’re someone who stops by regularly, or someone who has only been here a couple of times. Hope you enjoy the pictures!

Although obviously I hope it isn’t the case, this might well end up being my “epitaph” or tribute to Phoenix, what with her energy problems and the increasingly-hostile conditions at her landing site. Let’s keep our fingers crossed that she can survive to at least send back a few more sols’ worth of pictures before she falls silent forever…

——————————————————————————–

PREPARING TO SLEEP

My once-fierce flames are failing now:

Fading as the fleeing Sun fades,

And I can barely feel

Their warmth as I stand here,

On Barsoom’s epic Polar Plain,

Staring over a sea of ancient stones,

My very bones chilled by Mars’ aching cold

as my butterfly-brief life ebbs away… 

Once I stood proud beneath this great

Dome of a sky. Now my whole body shakes

In fear, for the hungry wolves of winter

Are drawing near. I hear their howling

on the icy wind, see their frost-flecked eyes

staring at me from the cruel dark,

proof that Death is stalking me now,

creeping forwards on all fours, edging a little closer

every time I blink… I don’t think

I can stay awake much longer…

Dying in this fading, hoar-frost half light

I cannot help but wonder through the night

Have I made you proud of me? Have I achieved

All you hoped and dreamed I would? Whenever I could

I reached out with my claw and scraped it red and raw

Against the ice I came to find. But my craw

Remains as dry tosol as it was when I arrived,

My hungry TEGA stomachs grumble still,

Filled not with precious proof that Mars was once

A home for life but clogged with cloying dirt

That rattles inside me mockingly

As the polar wind blows through my body

Like a ghost – a reminder I am already in my grave…

And now, as the sullen sun sets again I start

To hear and see strange things: is that the yapping

And yipping of dogs or just the cracking

Of my slowly splintering wings?

On the far horizon there- a ragged line of men

In frozen-fur hoods and heavy, dragging boots?

I see their birds nest beards clotted with frost

As they heave heir creaking sleds, crump-crumping through

The snow – no… no… they are just dust devils

Whirling past, taking one last pitying look

At the alien that fell out of their sky all those months

Ago, uninvited, and now lies close to death…

And I’m sure there is no ghostly figure

Standing by my side, and their frostbitten hand

- Cocooned inside a seal-fur glove -

Is not really resting on my shoulder, but as I shiver

Uncontrollably I can half believe I hear

The voice of Shackleton – no stranger

To ice and cold – speaking soft into my ear…

“I believe it is in our nature to explore, to reach out

into the unknown. The only true failure… would be not to explore at all.”

… and with those words I lay my heavy head

down upon the frosty ground, to the sound

of my own heartbeat slowing down,

and close my tired eyes one final time.

The last thing I see: a spark of pure blue light

Shining in the west, a blessed sight,

Burning with the gentle glow of six billion curious souls.

Some will remember me, I hope, and should your

restless eyes gaze at the starry sky and see Ares

Glinting ‘bove the trees then think of me,

And cast your mind back to these golden

Glorious Days, when a Phoenix flew to Mars..!

© Stuart Atkinson 2008

I’m not sure how many more – if any – pictures I’ll be posting here, because it seems that Phoenix really is living on borrowed time now. She’s in a pretty bad way, in fact. If you take a look at my post on my general blog, Cumbrian Sky (link over there on the right) you’ll see that no sooner had her controllers started switching off un-needed systems and pieces of hardware (like the robot arm and the TEGA ovens) to conserve energy than the probe put itself into Safe mode, so it seems as if power levels are pretty low now, and many people are wondering if Phoenix might actually have taken its last pictures of the martian arctic.

Hopefully there’s a little more to come from Phoenix, but I wouldn’t be at all surprised if she’s sent back her last pictures from Barsoom. All we can do now is wait and see what happens.

But Phoenix’s flames are definitely fading…

Here are two colourisatons, showing exactly the same section of Phoenix’s landing site but at very different times of the sol (that’s day in Old Terran! ) First, a Sol 151 image, taken at around 05.15 local time…

You can see some hints of blueish-tinged frost on the ground – but not a lot, which is a bit of a surprise; back in August it seemed like the ground around Phoenix would soon be thick and fat with frost, but that just hasn’t happened… It’s bound to happen soon tho, as Phoenix’s nights are drawing in, and the sky seems very cloudy now… some of that water vapour scudding overhead has to start condensing out soon…?

And now, an image taken around 9 hours earlier, at around 20.40 on Sol 150…

Warning, that image has been tweaked and stretched and enhanced to within an inch of its life, until it almost begged for mercy, so I’m not claiming at all – and I NEVER do that here anyway – that it’s a “real” or “natural” colour pic, it’s an unashamedly arty pic, made just because I wanted to and could, and wanted to make a pretty pic, not a scientifically accurate one… but it does show that by that time of the sol the lighting was very soft, and shadows almost non-existent…

As usual, please click on the images to bring up full size versions. Well worth the effort.

Two very different views of the same area of rocks and dust, showing just what a beautiful, beautiful world Mars is…