Mars Landers - Opportunity, Bedrock, Aerosmith? 351
Iphtashu Fitz writes "As was reported last week, the first Mars rover Spirit had some communications problems that the folks at the JPL have finally managed to trace to problems with its flash memory. Reuters is reporting that Opportunity seems to be having some power-related problems, too. It appears a faulty thermostat is turning a heater on overnight without being told to do so. While NASA isn't concerned about the rover overheating, they're exploring the long-term effects of continued power drain on the second rover." The article also notes: "The first three-dimensional, panoramic images beamed back from Opportunity showed an intriguing outcrop of exposed bedrock" - there's now a color version of the same image. Finally, lightwaveman points to the Spaceflight Now status page regarding new priorities for the Mars mission: "The airing of today's Mars rover news conference is being delayed on NASA TV to show the band Aerosmith touring International Space Station Mission Control at Houston's Johnson Space Center."
heaters.. (Score:5, Funny)
Re:heaters.. (Score:5, Funny)
On the 14th, Spirit was warmer than the people in my hometown.
Re:heaters.. (Score:3, Interesting)
Re:heaters.. (Score:2, Interesting)
Re:heaters.. (Score:2)
Opportunity got really lucky (Score:5, Interesting)
btw, Firebird on OSX says the color image contains errors. Anyone else having that happen?
Re:Opportunity got really lucky (Score:3, Funny)
that Fred and Wilma are grand parents now. Turns out Gazoo is the father.
Re:Opportunity got really lucky (Score:3, Informative)
Re:Opportunity got really lucky (Score:3, Informative)
Having played geologist for a number of years now, I can say that the bedrock looks like wind deposits to me. The crossbeds that are present look similar to crossbeds you can observe in the Navajo Sandstone in Utah or a number of other formations in the Colorado Plateau. Unless there are some scientific instruments I am unaware of they will not be able to conclusively determine whether the bedro
Re:Opportunity got really lucky (Score:2)
Playing Geology? (Score:2, Informative)
Granted, the source minerals are a little different on Mars, but the instrumentation will tell us what they are in detail. But any competent geologist can make that determination by the Junior year in school.
Re:Opportunity got really lucky (Score:3, Informative)
Re:Opportunity got really lucky (Score:4, Informative)
Re:Opportunity got really lucky (Score:5, Insightful)
Actually, if we could pick *any* landing site, there are *a lot* more interesting ones on Mars to choose from. You have to decode Nasa-speak - what they're really saying is: "to be on the safe side, we always land in very flat regions, which tend to be (geologically speaking) rather boring. We are thrilled to have stumbled upon a flat region that looks *different* from all the other flat regions we've landed in before."
In other words, we've graduated from Kansas to Oklahoma. The Rockies, Grand Canyon, Yellowstone, Rift Valley, Himalaya, etc. of Mars are still waiting for us to develop more robust landers and capable all-terrain robots. Check out ESA's first Mars Express images [esa.int] for a taste of some more dramatic scenery. Can't wait till we get a rover into *that*!
- nic
Rock This Way (Score:5, Interesting)
Seriously though, it's been a pretty good week for NASA so far, with Opportunity landing safely and Spirit slowly coming back to health.
My question is: When they locate a fix for Spirit, will they apply it to Opportunity as well? Are the two really identical, and if so wouldn't Opportunity run the risk of the same sort of major nervous breakdown that Spirit had? Or do they plan on leaving well enough alone?
Re:Rock This Way (Score:5, Informative)
I'll try to dig up a link.
Re:Rock This Way (Score:5, Informative)
Changes to memory usage [kansascity.com]
The latest theory on Spirit's difficulties involves an overloading of engineering and science data files in the flash memory. The memory had not been purged of files accumulated during Spirit's near seven-month journey from Earth.
The recovery plan includes a culling of the files and a change in the operating strategy for Spirit as well as Opportunity that will more closely monitor the file content.
Bold is mine
Re:Rock This Way (Score:4, Informative)
According to the Reuters article one of the theories that NASA is investigating is the possibility that a solar flare could have damaged Spirit during "a vulnerable point during its communications with Earth." If that's the case then there's probably not much they can do to prevent it from happening again. If, however, another theory like the machine overloading itself with datafiles, turns out to be the true culprit then they probably could patch both rovers.
Re:Rock This Way (Score:2, Informative)
They're also deleting files off Opportunity as soon as they've been transmitted and/or are no longer required, so it hopefully won't develop the same problem.
Re:Rock This Way (Score:2, Informative)
That depends on the nature of the problem doesnt it? If the problem was caused by a dust storm blowing a rock onto Spirit (just a silly example - dont take it literally), there wouldnt be anything to fix on Opportunity, right? Actually, the question you asked was asked by a journalist during one of the NASA briefings, and the answer was something along the lines of "..it depends on the root cause of the problem....". And if its a hardware failure, there might not be a software fix anyway (even though there
Re:Rock This Way (Score:2)
Re:Rock This Way (Score:2)
Open Source the Rover Code ? (Score:5, Interesting)
Its not like this is proprietary, for-profit code. I helped paid for it. Its for the good of all mankind.
If nothing else, I would love the chance to learn something from NASA. The rover code might be as beautiful as the images coming back (or not!).
Re:Open Source the Rover Code ? (Score:3, Insightful)
Why? Because it's unlikely that the open source community will provide much in the way of useful commentary. They don't have simulators to run the code on. And I find it unlikely that they will spend the months needed to understand a complex, tightly integrated, and utter
Let's hope the new rover doesn't meet this fate... (Score:2, Funny)
Re:Let's hope the new rover doesn't meet this fate (Score:2)
Re:Let's hope the new rover doesn't meet this fate (Score:2)
um... yeah (Score:4, Funny)
What, Bruce Willis wasn't there?
Said it before, I'll say it again (Score:3, Insightful)
Re:Said it before, I'll say it again (Score:5, Insightful)
Re:Said it before, I'll say it again (Score:3, Insightful)
Granted, might get a little tingle splicing them back together to turn the heat back on, but I'm sure there would be other accomodations in case of a heater / thermostat failure (i.e. have 2 of them?) if humans were on the surface....
If the entire system shut down, since humans are on the spot (most likely engineers and scientists) they'd probably be able to hack something together. A little more difficult (not impossible) from
Re:Said it before, I'll say it again (Score:3, Funny)
Re:Said it before, I'll say it again (Score:5, Insightful)
Having somebody there would be useful if they had a spare part to install. It only makes sense for a manned mission to go to Mars after there's a reasonable amount of supplies already there. A long-lasting power source is one piece of that, but there are plenty of others. Also, before we can just "use nuclear power", someone will have to design a power plant that will reliably survive EDL [nasa.gov] and produce a significant amount of power afterwards. Playing around with rovers is giving NASA (and humanity) the experience necessary to supply a crew and get the crew there safely.
Re:Said it before, I'll say it again (Score:2)
Re:Said it before, I'll say it again (Score:5, Informative)
They're called RTGs, and they weren't used on Spirit or Opportuniry because of backlash from environmentalists. After all, how dare NASA send up a few pounds of plutonium on space craft. Why, that Cassini thing nearly killed everyone!
Right.
Also, before we can just "use nuclear power", someone will have to design a power plant that will reliably survive EDL and produce a significant amount of power afterwards.]
It's called a Gas Core Nuclear Rocket (GCNR), which is a advanced NERVA style engine. NERVA was completed in the '60s, but cold war fears of nuclear power killed the project. Over the past decade, NASA has had the GCNR under quiet development for use in space propulsion. What most people don't realize (an intentional oversight by NASA) is that GCNRs can produce more thrust than a chemical rocket, but at a much higher Isp. Even the completed NERVA technology had 4 times the lifting power of today's Space Shuttle.
The really beautiful part about GCNR, is that it could potentially breath gases like O2 and CO2 as fuel. That means that we could easily create space planes that work on Earth *and* Mars. Wouldn't it be nice to fly into Mars' atmosphere instead of falling? (Do a search for "Project Pluto". It wasn't the cleanest plane ever, but it did work.)
Playing around with rovers is giving NASA (and humanity) the experience necessary to supply a crew and get the crew there safely.
Bull. These rovers don't even have a tenth the amount of power, resources, propulsion, and ability that can be accomplished with today's technology.
We have the technology already. We just need to stop putzing around and *use* nuclear power.
Re:Said it before, I'll say it again (Score:3, Interesting)
Re:Said it before, I'll say it again (Score:3, Interesting)
Yes, just what we need: two out of three Mars landers crashing, only this time with lots of highly radioactive materials on board.
Okay, time for a thought experiment. Let's assume worst case scenario of two chemical rockets crashing versus two nuclear rockets crashing.
When the two chemical rockets crash, passengers will most likely die, and the (already uninhabitable area) will be polluted with the materials and fuel that make u
Re:Said it before, I'll say it again (Score:3, Interesting)
But not for power. They're able to slip in a few grams of plutonium because no one's going to notice (or really care). But when you're talking 2.5 pounds of plutonium per 75 Watts, people start envisioning rockets raining death. It's a sad state of affairs really. Had the rovers used RTGs for power, their power sources would have outlived the other components by a half-century or better.
BTW, the heating units are not RTGs. They don't generate any electricity. Instead, th
Re:Said it before, I'll say it again (Score:2, Insightful)
Re:Said it before, I'll say it again (Score:2)
Nuclear rockets can power a large enough craft to spin. Or alternatively, some engines could produce light gravity via constant acceleration.
finding a rocket ship with enough lift capacity
Found it. [nuclearspace.com] GCNR technology is mostly developed. NERVA technology already is developed.
bringing enough food/supplies for multilple weeks/months,
That's actually the least of our problems. We've had a lot of experience with long missions thanks to submarines and
Re:Said it before, I'll say it again (Score:2)
Um, or, we could put a couple temp probes on the thing and let the computer control the heater. That'll save about $983 billion or more from your plan.
I've Said it before, and I'll say it again (Score:5, Interesting)
We need to set up an infrastructure before we send people.
I would like to see 8-12 sattalites whose goals are, in order:
1)relay communication
2)track objects on the planet
3)Pictures.
we should also send a few big units full of supplies.
Then we should send people who Also have enough supplies to get there and back.
They should rotate supplies as new missions land
We should do experiments on building shelters from native materials.
That could mean caves, mines and/or adobe huts made from local materials.
Mars is really far away(yes you can quote me
I would also like to send 4 or five teams of 6, each about a month apart.
Re:I've Said it before, and I'll say it again (Score:3, Interesting)
And how many nuclear craft are currently flying? The correct answer is ZERO. Not because it isn't a good idea, but because of FUD surrounding nuclear technology. NASA can't even send up a few pounds of plutonium as a passive power source without everyone claiming we're all going to die.
I would like to see 8-12 sattalites whose goals are, in order:
1)relay communication
2)track objects on the planet
3)Pictures.
Agreed.
Re:Said it before, I'll say it again (Score:2, Insightful)
I think that the problems with Spirit and Opportunity might show we need to take it at a cautios pace before sending folks out there. Its been pointed out that these rovers took 10's of G's just to get there and land, and thats gotta be rough. Most pilots and astronauts to this point have seen about 10G's worst case, and for very short periods of time.
One of the largest concerns about space travel is radiation exposure. Once you enter the Van Allen Belts, which lie outside the protection of Earth's mag
Re:Said it before, I'll say it again (Score:4, Insightful)
As if science and money are the ultimate ends of the human experience. They're not.
You could just as easily have asked what the scientific or monetary reasons were for Marco Polo to go to Asia, da Gama to go around the Cape of Good Hope, Columbus to go to America, or Magellan to sail around the world. Or what the scientific or monetary reasons for NASA to put men on the moon 40 years ago. While each voyage had scientific and/or monetary justifications, they only became clear in retrospect and were in any event secondary to the experience and the human achievement.
Re:Said it before, I'll say it again (Score:2, Informative)
Re:Said it before, I'll say it again (Score:2)
Thats a good point. I think there are several things in life that people are drivin to do for unknown reasons except for the fact that they're going into the unknown. It's easy to look back and see that it was a necessary step to get to where we are now, but the one doing the initial feat is typically called crazy and/or stupid
Re:Said it before, I'll say it again (Score:2)
How positively un*american*! You terrorist!
yeah yeah troll yeah
Re:Said it before, I'll say it again (Score:2)
Of course, if they were actually going there for colonization, that would be a very different story.
Good scientific reason... (Score:3, Insightful)
Basically, a human crew, even with the disadvantage of space suits, could work a lot faster, cover a lot more territory, and try a far greater variety of scientific techniques than any robot probe, or large set of robot probes, could do.
Re:Said it before, I'll say it again (Score:2)
Re:Said it before, I'll say it again (Score:3, Interesting)
Re:Said it before, I'll say it again (Score:3, Interesting)
It'd take three YEARS for a MANNED probe to reach Mars, the longest a human has even been in space is 400 odd days!
Dude, say it with me: N U C L E A R
Isp of 1000-5000 (NERVA is 1000, GCNR is 3000-5000) so fuel is very well conserved. (Craft like Orion have an even higher Isp.) Since we can get more thrust on less fuel, we can get there in months instead of years.
There are severe issues in space, the 0g causes muscles to break down, and c
Spaceflightnow charges for nasa footage? (Score:2, Interesting)
Re:Spaceflightnow charges for nasa footage? (Score:2, Insightful)
Oh, Sure, Like I Believe That... (Score:5, Funny)
Yeah, right, that's really Tatooine, if you look closely you can see Luke's uncle's 'farm'. in the distance. I'm pretty sure there some sand people messing with these rovers. At least when the rovers burn out the Jawas will be able to clean things up.
Obviously they didn't launch rockets to put those there, they used the same hyperspace portal that George Lucas uses.
Re:Oh, Sure, Like I Believe That... (Score:4, Funny)
You mean the same place where Lucas gets his scripts?
No, wait, that was his ass. He'd need a tube of KY the size of a super star destroyer to pass something like a Mars probe.
Lightwaveman (Score:2)
about the colorized bedrock image (Score:2)
thank you nasa
looks like bones and scales to me (Score:2)
There's always Mars (Score:5, Insightful)
Then there's Mars. Drama, excitement, scientific adventure: I feel proud of our messed up little species. Stuck somewhere between monkeys and angels, we manage to pull off some cool stunts once in a while. Go Team!
Re:There's always Mars (Score:5, Informative)
Or as Arthur C. Clarke wrote in 2001 a Space Odyssey: "After ten thousand years, man at last found something as exciting as war."
Re:There's always Mars (Score:2)
Re:There's always Mars (Score:2)
Re:There's always Mars (Score:2)
Why no, Senator, I'm NOT a member of the communist party...
I'm an equal opportunity wingnut.
VOTE FOR uh, hmmm, uhm, that is to say, AT LEAST VOTE
Bedding plane (Score:5, Informative)
Re:Bedding plane (Score:2)
The interesting weathering effect there is the way that it has split into squarish blocks, which is usually a sign of 'unloading'. That is, overlying rock layers have been eroded away, reducing the pressure on the lower layers. Given that the lower layers were slightly compressed under that weight, they fracture into cubical
Game over man! (Score:3, Funny)
They just got a little confused... (Score:5, Funny)
Re:They just got a little confused... (Score:2)
Go Nuke - (Score:3, Insightful)
If NASA is concerned about dust build up on the panels don't use them.
If they are concerned about dust on the camera lenses perhaps they could lease the "on car" camera technology from CART or NASCAR.
As for Aerosmith - they even less to do with science (unless your a chemist) than they do with football. - They and all the popstars f'up my Monday Night Football Intros, and now they delay delay NASA TV, Im gonna pirate thier latest album just to delete it.
Re:Go Nuke - (Score:2)
Hippies.
Re:Go Nuke - (Score:2)
We can build everything, the other country only needs to launch the atomic bits up.
Color Photo? (Score:3, Funny)
Re:Color Photo? (Score:2, Informative)
As has been discussed on
Quicktime VR? (Score:2)
if beagle (Score:2, Interesting)
Beagle2 is the most technically advanced out of the 3, and can analyse materials and send the results back to earth, so you could effectively get proof of life (or be it, 'beyond most doubt') on mars within a couple days of it landing.
Very sad it didn't work out.
Comment removed (Score:5, Funny)
Message from Opportunity...just in (1 of 5040) (Score:5, Funny)
from neomail03.traderonline.com [10.222.132.7]
----- The following addresses had permanent fatal errors -----
(reason: 550 5.1.1
----- Transcript of session follows -----
RCPT To:
550 5.1.1
Reporting-MTA: dns; neomail02.traderonline.com
Received-From-MTA: DNS; neomail03.traderonline.com
Arrival-Date: Wed, 28 Jan 2004 17:50:53 -0500
Final-Recipient: RFC822; Opportunity@nasa.com
Action: failed
Status: 5.1.1
Remote-MTA: DNS; neomail01.traderonline.com
Diagnostic-Code: SMTP; 550 5.1.1
Last-Attempt-Date: Wed, 28 Jan 2004 17:50:54 -0500
From: Opportunity@nasa.com
Date: January 28, 2004 2:52:34 PM PST
To: earth@nasa.com
Subject: Hello
The message contains Unicode characters and has been sent as a binary attachment.
Re:Message from Opportunity...just in (1 of 5040) (Score:3, Funny)
Two out of two isn't bad (Score:5, Insightful)
What's all you space geeks saying? Is there something we would really miss by using slightly modified versions of these landers that would justify development costs? Or is the question moot since Bush wants manned missions anyway?
Already being re-used (Score:5, Informative)
The Spirit/Opportunity landing system is heavily based on the Pathfinder/Sojourner design. The parachute and airbags had to be beefed up to deal with the additional weight, and some other modifications were made based on what was learned the first time around, but it's basically the same. I understand that squeezing the much larger Spirit and Opportunity into the lander was not easy, which is why the probes arrive folded up like elaborate origami.
Memories.... (Score:2)
Fuck you, NASA, you ruined my life.
Is it me? (Score:5, Insightful)
For the media, bad news is good news (storywise). Here we have unprecidented sucesses of the MERs (and Mars Express - within DAYS of working it has found evidence of it's top mission objective), and now there's all this press about the "failures."
Or has NASA been "asking for it," as they keep saying how "amazingly perfect" things are going, setting themselves up for scrutiny when they fail? My opinion: no, but what about you?
Re:Is it me? (Score:3, Insightful)
I certainly hope Spirit can be rehabilitated; that in itself would be a triumph. On the other hand, ith the Rover's lifespan of 90 days [nasa.gov] or so, each day on Mars costs several million dollars. Each nonfunctional day makes the mission a day shorter and that much less succe
I can hear the envirowackos now! (Score:5, Funny)
Re:I can hear the envirowackos now! (Score:2, Informative)
that thermostat may be conscious (Score:2)
http://www.u.arizona.edu/~chalmers/notes/lloyd-
Interesting (Score:2)
NASA isn't concerned with being slashdotted then? (Score:4, Funny)
Re:NASA isn't concerned with being slashdotted the (Score:5, Informative)
I work at Speedera who is delivering their content and NASA TV. At 6pm EST when slashdot posted this story the traffic increased only about 100Mbps. Articles posted on AOL, MSN and Yahoo home pages increase the traffic much more. The NASA TV live stream when Opportunity landed was 4 Gbps. There are lots of other sources that are bigger than the slashdot effect.
See the press release [speedera.com] for more details on the traffic and our SpeedRank [speedera.com] index for historical performance and availabilty of NASA's site.
ok maybe it's just me (Score:2)
Nasa Covering up Martian Presence (Score:2)
See the pictures that have large squares [nasa.gov] missing? Well, Nasa is taking out the spots where martians get in the frame. They really don't want to start mass hysteria. Can ya' blame em?
This may be only my opinion (Score:2)
NASA is pink-ing out the skies so that we can't see futur-istic (to our eyes) Martian City-Scapes off in the distance
Much as I hate to whine about the quality of reporting here on The Slash.
This is *really* getting to be the site for
EVEN when they're DUPLICATE PO
Re:Aerosmith? (Score:2, Funny)
They probably only got in because Steve told them he's "Arwen's" dad. Otherwise those geeks probably wouldn't have a clue who these fossils are.
Re:Shame (Score:5, Insightful)
Kudos to NASA for doing so well
Re:Shame (Score:2, Funny)
Re:Shame (Score:5, Insightful)
I can't think of a single mission in which everything was sucessful:
-Hubble had it's famous initial "disaster."
-Galileo had it's near-catastrophic antenae failure (which made the mission produce like 10% of the intended science/pictures).
-The Voyager Probes had various instruments which conked out before Neptune (granted the mission was only engineered to work for Jupiter and Saturn)
-Mars Express's Lander has presumably failed (but it's primary mission appears to have already found some evidence of it's main goal - finding water)
-The Soviet Venera Probes each had problems (one mission in particular returned no pictures due to an unremoved lens cap!)
-Pathfinder, like Spirit, had periods of breached-communications (including a much-longer delay in communcating with Earth after touching down on the surface).
Yet each of the above missions were HUGE sucesses in their own regard. NASA (and ESA and USSR) all has problems with them, but they were all very much redeemed themselves. It's like having a kid who turns out to be a hero firefigher/scientist or something. Just cuz he/she had a few temper tantrums doesn't mean that they're a failure. Look at the big picture...
Re:Shame (Score:2, Flamebait)
Re:What is more old and tired? (Score:2)
C.) Bruce Willis