The Phoenix Has Landed 369
Iddo Genuth writes "Precisely at 7:53PM EST, the "Phoenix Mars Lander" touched-down on the desert-like surface of Mars. Since its launch on August 4th, 2007, the spacecraft has covered more than 680,752,512 kilometers, traveling at average speeds of around 120,000 km/hr. Upon arriving at its destination, the Phoenix will begin its exploration of our intriguing neighbor planet, in a mission to help astronomers resolve at least some of the many questions regarding Mars. The key question remains: can the Red Planet support some form of life?" Hella grats to our nerd brethren — you looked great on the Science channel. Yes I'm watching this live. Can't wait to see what happens next.
Update: 05/26 03:0 GMT by KD : zof sends a link to the first pictures from Phoenix.
Update: 05/26 03:0 GMT by KD : zof sends a link to the first pictures from Phoenix.
live (Score:5, Funny)
Re:live (Score:5, Insightful)
All in all, it does my heart well to see such mainstream coverage of the event. My parents, who are sort of aloof to anything scientific, are even paying attention to it on the 24 hour news. It's these sort of things turning into moments that reach across all of society that inspire new generations of kids to become scientists.
Re:live (Score:5, Insightful)
So they can shit bricks for 7 minutes as their billion-dollar experiment and paycheck hang in the balance? It's one thing to watch on CNN from the comfort of your big fluffy chair, but remember these people had their asses on the line. People lost their jobs when the Polar Lander crashed in the 90's.
Re:live (Score:5, Funny)
Objective: Entry Level Food Server
Education:
Caltech, PhD in Astrophysics
MIT, Master of Science, Physics
Prior Experience:
Crash-landed a spacecraft on Mars.
Re:live (Score:4, Interesting)
the principal investigator of this effort, Peter Smith of the university of Arizona, does not have a Phd.
His credentials are ofcourse amazing, but it just happens he is not a dr.
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His credentials are ofcourse amazing
Yes, Metallic even wrote a song about him - originally called "Master of Puppets (and other r/c craft)". It included a prophetic diatribe from him to the spacecraft as it wound its way towards Mars:
Needlework the way, never you betray ...
Line of death becoming clearer
Pain monopoly, ritual misery
Speak to me!
Hell is worth all that, natural habitat
Just a rhyme without a reason
Neverending phase, Drift on numbered days
Now your life is out of season
I will occupy
I will help you die
I will run through you
Now I rule you too
Hell is obviously a reference to Mars, the Red Planet, which we are going to one day turn into an earth-like habitat. Looks like his constant jibing and nay-saying of the Phoenix has paid off anyway, as it has given it a steely resolve to prove him wrong and survive in such a lonely situation.
Excuse me while I
Pictures (Score:5, Informative)
http://fawkes1.lpl.arizona.edu/images.php?gID=0&cID=7 [arizona.edu]
Re:Pictures (Score:5, Funny)
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http://profile.myspace.com/index.cfm?fuseaction=user.viewprofile&friendID=228164083 [myspace.com]
I just had to look...
Re:Pictures (Score:5, Informative)
http://img294.imageshack.us/my.php?image=phoenixlegstereoug5.jpg [imageshack.us]
http://i27.tinypic.com/24yyfix.jpg [tinypic.com]
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Re:Pictures [color] (Score:5, Informative)
Usually they use filters to provide color for space missions. The first pass is a general survey. Filter-based color requires multiple images of the same spot, which will probably come later. Plus, they will probably use "science-friendly" filters before they use human-eye-friendly filters. Science before beauty. Just be patient...
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Re:Pictures (Score:5, Informative)
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Re:live (Score:5, Funny)
That's just so any Martian profanity can be edited out by the FCC before it reaches America.
Doesn't even have to be live life... (Score:5, Interesting)
But then... what if they do find evidence of life? I mean large, complex forms of life, not some fossilized bacteria that everyone will debate and bitch about. That's what I'm hoping they dig up.
Re:Doesn't even have to be live life... (Score:5, Insightful)
Re:Doesn't even have to be live life... (Score:5, Funny)
Re:Doesn't even have to be live life... (Score:5, Insightful)
Re:Doesn't even have to be live life... (Score:4, Interesting)
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lander, not rover (Score:4, Informative)
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Decades? Centuries? Even assuming they'd survive that long, those little rovers aren't very fast. Less than walking speed even when operational, and they have to hibernate every winter. And their point of view is low enough they'd be doubling back a lot, I'd imagine.
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The Phoenix lander is at about 234E 68N while Opportunity is at 1.95S, 5.53W and Spirit is at 14.57S, 175.47E.
Using great circle distances Opportunity is about 6040km away while Spirit is a fair bit closer at 3830km.
Assuming either rover travelling at their maximum top speed of 0.182km/h (not counting the need to stop and review the terrain every 10 seconds or to hibernate over winter) they would take this long to reach
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What are the chances of puttering around for a few hundred meters on earth and randomly finding a human skeleton?..
Pretty good if you touch down at a well chosen landing site. You just need to find the Martian equivalent of the Manson ranch, or an empty lot with disturbed soil near the Martian Mafia. Given the planet's drying history, there would have been a lot of drifters, and similarly criminals to prey upon them.
Some people say I've been reading to much Heinlein lately...
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Re:Doesn't even have to be live life... (Score:5, Interesting)
Re:Doesn't even have to be live life... (Score:5, Informative)
So Phoenix packs much better science gear than the rovers, and to compensate they just try to drop it somewhere uniform and with a decent chance of finding what you are looking for regardless of the specific drop point.
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It is much easier, and you get better science, to use a monochrome camera and throw different filters in front of it. Besides, you can get color by adding the right filters together.
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Re:Doesn't even have to be live life... (Score:4, Informative)
Two reasons: The first is weight - mobility systems cost a great of it, and every gram alloted to them is a gram that can't be spent on science. Which also means that had it wheels, Phoenix would be limited to same modest science package the rovers have. The second is mission life time - unlike the rovers, the odds of Phoenix dying once winter comes are near unity. Which means that a notional wheeled Phoenix with it's much more modest science package won't cover much ground before freezing to death.
Re:Doesn't even have to be live life... (Score:5, Interesting)
It also provides a map of population density in the world. Another article provides information on the surface area of the Earth. [wikipedia.org]
Approximately 29.2% of the surface is dry land. 13.31% of this land is arable, with only 4.71% supporting permanent crops.
148,940,000 km is dry land. (1.940 x 10^14 mÂ)
Assuming a buried person takes up 1 square metre.
Assume that there have been 120 billion skeletons buried all over the place (125 minus 5 billion still living).
Then you have 1.20 x 10^11 / (1.940 x 10^14 mÂ)
which gives 1.20 / 1.940 x 10^-3
or 0.000618556
6.18556 x 10^-3
So, you have a 1/1616 chance of finding a skeleton. Your odds will be affected by the cultural traditions of the local population, the local geology (limestone will dissolve bone). The natives might think twice about burying tribe members on farm land.
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For probabilities with very large n (120 billion in this case), what I'm going to say doesn't make much difference. But for the sake of correctness, you're assuming no two skeletons are buried in the same place. The proper way to do it is to calculate the chance that none of those skeletons are in the spot you're inspecting. If you inspect one square meter, the chances of that are [1 - ( 1/1.4894x10^14 ) ] ^ 120 billion. Subtract from 1 to get the chan
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But then... what if they do find evidence of life? I mean large, complex forms of life, not some fossilized bacteria that everyone will debate and bitch about. That's what I'm hoping they dig up.
Re:Doesn't even have to be live life... (Score:5, Funny)
I'm hoping it finds Jimmy Hoffa. Or maybe the second gunman.
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Or science, if there is an agreement that Mars could had never sustained complex/big lifeforms.
Or, as someone else suggested, math, because we beat badly the odds of finding something life related doing a relatively very short trip in something that looks more like a desert than a jungle (well, in this case we will go back to religion very soon).
"Precisely?" (Score:2, Offtopic)
I guess if it exploded and came down in pieces, it might not touch down at one instant, so maybe the fact that it touched down at precisely 7.53, instead of at roughly 7.53 (with some parts coming in early at 7.50 and a few stragglers not maki
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If picking nits, do it properly.
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You know, even pressing a microswitch like the one in your mouse is not a momentary action from the microcontroller's point of view - it needs an explicit "debouncing" theshold of a
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Or maybe he forgot to set his clocks forward.
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A completely minor comment, but I'm struck by that strange and vaguely illiterate use of "precisely." I mean, could the spacecraft not touch down at some "precise" instant? Isn't it the nature of momentary events like touchdown to, well, happen in one precise moment?
Well, both prior Mars missions using airbags did not touch down at a precise moment, having bounced, tumbled, and rolled for a significant period of time. So maybe this is a a deep reference to the use of rockets+legs for landing, and the fact that they really stuck the landing.
:)
Then again maybe not, but if you're going to read too much into TFS, the best I can do is return the favor. Have a nice day
Enormous congratulations to them all (Score:3, Interesting)
Ever since I read the Mars Trilogy (red, green, blue) I have really hoped that it could come true in some way like those books show. (not all the bad obviously)... I would love to see it start, I really would.
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Other than the good feeling of putting a human on Mars what is the point? I'd rather see technology on Earth progress to the point where there insn't a reason to not send a person to Mars.
Space races are all fine and dandy for countries to show off, but don't confuse such events with real scientific advancement.
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"real" scientific advancement (Score:3, Funny)
That's EASY! Take something "complex" [wikipedia.org] and remove just the "imaginary" part. ;^)
Re:Enormous congratulations to them all (Score:5, Insightful)
"Oh, other than the feeling of putting people on another country, what's the point?"
It's attitudes like this, that are so very narrow and shallow minded that cause people to become insular and think only of their own back yard in all affairs.
Other than the scientific achievements in doing this, there is the overall good it does to the human spirit to see ourselves as a race be able to conquer the distances, to think of a huge problem like this and surmount it with science.
If it encourages kids to do more in the way of science rather than religious persecution etc., I'm all for it.
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It's apples & oranges - They didn't have the ability to send out automated ships to do exploration. Ships were sent out not for the mere purpose of exploration, but to discover trade opportunities. Explorers were travelling in a resource rich environment (food & water was likely available). And lastly the technology to send explorers was easily transferable to send settlers/tradesmen to profit from the voy
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Congratulations... (Score:4, Insightful)
It's going to be an eventful summer here on Earth, that's for sure.
The Phoenix Has Landed (Score:2, Funny)
What gets me is... (Score:5, Insightful)
Great job, JPL & Arizona!
Junkyboy55 (Score:4, Insightful)
Amazing how short sighted ppl are (Score:5, Interesting)
A couple of days ago, I mentioned that the reason for human missions to the moon was because of uranium/plutonium. Yet, ppl were upset about what a waste human missions were without realizing that we could fire up new MUCH LARGER missions to mars and elsewhere and let them use plutonium. I never bought off on W's idea that the moon would be a good launch pad based on the hydrogen that is there. But if we have LOADS of plutonium, that is a different matter. We can easily rail launch missions combined with large amount of energy via plutonium without worrying about it being spread all over the earth's atmosphere. Hopefully, at some point, Americans realize that one idea does not need to preclude another. For instance, human missions do not need to prevent robotics from going (or vs. versa).
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No we weren't [youtube.com].
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http://www.space.com/news/080306-nasa-plutonium-shortage-fin.html [space.com]
EXACTLY. (Score:2)
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The problem is not a shortage of raw materials (Pu-238 is currently made by irradiating components of otherwise useless n
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It has simply been easier for us to buy the stuff from Russia over the last couple of decades. (This probably has had the beneficial side effect of keeping some of their nuclear technicians gainfully employed.)
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It would be much simpler, safer and cheaper to simply put a small nuclear reactor in the spacecraft. Tiny reactors use ordinary cheap weapons grade uranium fuel. Before the reactor is turned on, the virgin fuel isn't even significantly radioactive, so no launch issues. Unlike RTGs, the power output of reactors can be adjusted as ne
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Although there are certainly applications for nuclear power on interplanetary spacecraft, I don't think that it would have been appropriate for a small stationary scientific probe.
Once the probe has done its stuff, and examined the surface around its landing site, there's not a whole lot much more it can do. Mission accomplished.
And even as much as fears regarding nuclear power may be
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This is pure ignorance talking. Having an RTG around isn't going to "contaminate" anything. They are fully sealed, and even in the worst case, can withstand extremely severe impacts without releasing any fissile material.
And in the worst case??? We end up with a bou
Re:Amazing how short sighted ppl are (Score:5, Informative)
http://mars.jpl.nasa.gov/msl/
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Re-broadcast (Score:2)
- DaftShadow
Late Breaking News (Score:5, Funny)
Re:Late Breaking News (Score:5, Informative)
Shit! Space is still no escape from stupid leaders.
Next story on Slashdot (Score:5, Funny)
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Phoenix Mars Lander Touched Me Liberally
Oh wait, that's kuro5hin.org. Never mind.
did anyone else notice the logo? (Score:3, Interesting)
Re:did anyone else notice the logo? (Score:5, Informative)
In English... (Score:3, Funny)
Phoenix went exactly 423,000,000 miles at the leisurely pace of 20.7 miles a second.
Now if we had done something really COOL, like drive there in a Jeep Commander, we would have used 22,263,157 gallons of gas and been MUCH better prepared for Mars.
Someone will bitch about fuel cost. OK, look at this: at $4/gallon it would cost $108,972,294 -- that's $411,027,706 cheaper than this $520M "good deal". Jeep is currently offering a $2.99 gas lock-in which would bring the total savings to $453,433,160. I mean WOW, they could spend the rest on parties and just tell us it's really, really complicated.
Now ask if the Phoenix has 4 wheel drive. Or A/C. Or the peace of mind knowing it's fully covered under a manufacturer's warranty.
Tough to beat if you ask me..
first images 2200 EDT (Score:3, Informative)
Pictures Already (Score:3, Informative)
one [arizona.edu]
two [arizona.edu]
three [arizona.edu]
That's fantastic.
Re:Pictures Already (Score:5, Informative)
Substandard Time (Score:2)
NASA web site (Score:4, Interesting)
Anyway it's great to see they pulled it off. It's weird how so many space shots worked on the first try and then we totally blew the next half-dozen tries. I blame the Martian strategic defense system.
Re:NASA web site (Score:4, Insightful)
I'm pretty sure it's not champagne parties for 2 hours before someone says "Hey, lets update the website guys!"
Mars bar (Score:5, Funny)
Re:Mars bar (Score:5, Funny)
The Hell? (Score:3, Funny)
Did they launch this thing before color photography was invented?
Re:The Hell? (Score:4, Informative)
Color pictures in high-res take a lot longer to download over a very slow radio link (Latency to mars is 20 - 40 minutes).
Black and white photos are the "test" set because you'll get them down quicker.
Earth Attacks! (Score:3, Funny)
Neat Pictures (Score:3, Funny)
Re:Can't wait to see what happens next. (Score:5, Funny)
That would really suck
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Pedantic, I know, but the difference between meteor and meteorite is just one of those things...
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Why? (Score:2)
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I can't tell if this satire or if the local Honkey Tonk kicked out all the philosophical regulars early. Just in case it's the latter, metrics are standard in science. Yes, even for Americans.
Better check your griddle, I think your Freedom Fries are burning.