Hubble Zooms In On Moon Minerals 191
DIY News writes "Lunar scientists have already returned to the moon, using the Hubble Space Telescope and old Apollo Program rock samples to begin prospecting for useful ores. Locating ores rich in oxygen and metals is seen as the first step in making the next decade's human return to the moon more self sufficient and cost effective. Some wavelengths of UV are filtered out by Earth's atmosphere, which is why Hubble can do the job better than a ground-based telescope."
Hollywood basement ? (Score:5, Interesting)
Re:Hollywood basement ? (Score:3, Funny)
Re:Hollywood basement ? (Score:3, Funny)
Re:Hollywood basement ? Insufficient resolution (Score:5, Informative)
Re:Hollywood basement ? Insufficient resolution (Score:5, Funny)
Re:Hollywood basement ? Insufficient resolution (Score:5, Funny)
Comment removed (Score:5, Funny)
Re:Hollywood basement ? Insufficient resolution (Score:2, Insightful)
Re:Hollywood basement ? Insufficient resolution (Score:2)
Re:Hollywood basement ? Insufficient resolution (Score:2)
Re:Hollywood basement ? Insufficient resolution (Score:2)
Totally sufficient resolution, you are on crack (Score:2)
I asked my brother-in-law, who pulled the data from the HST ACS, and he says he could see the Apollo landers even before the digital cleanups.
The science objective was to look at Aristarchus in UV to determine the presence of a particular mineral that was found in all the lunar rocks brought back from the Apollo 15 and 17 landing sites. They looked at those sites first as a baseline, then they looked at Aristarchus.
So: should I believe some numbers posted by somebody I don't know on slashdot (who thinks a
Re:Hollywood basement ? Insufficient resolution (Score:2)
I think you are in the wrong forum to be tossing around facts like that..
Re:Hollywood basement ? Insufficient resolution (Score:2)
Re:Hollywood basement ? Insufficient resolution (Score:2)
Re:Hollywood basement ? (Score:5, Informative)
An arc-second is defined such that a 1 meter object will appear as 1 arc-second at a distance of 206,256 meters.
The distance from Hubble (~600km orbit) to the moon (~384,400km) is
So if Hubble produced an image with 1 pixel-per-arcsecond resolution, a pixel would be 1.86 kilometers. But the highest resolution is 0.0072 arc-seconds, or about 140 times better than that.
So the smallest object Hubble can see on the moon is 13 meters wide.
Neither the lander module or the rover are that big. Not even close. Good luck finding something that's less than a pixel wide!
=Smidge=
Re:Hollywood basement ? (Score:2, Interesting)
Given enough contrast with its surroundings, an object could be as small at 4 meters wide and still be visible at
Re:Hollywood basement ? (Score:2)
Re:Hollywood basement ? (Score:2)
Re:Hollywood basement ? (Score:2)
Tell me... (Score:2)
If it had 1.1 arc-second would that be good? Or Would 0.00000001 be the ultimate?
Re:Tell me... (Score:2)
Imagine an object (say, you computer monitor) at some distance from an observer (you).
From the observer, draw two lines to either edge of the object to make a triangle. The angle between the two lines that meet at the observer would be the resolution angle. How imagine if that angle was fixed. If you move farther away from the object, it appears to get smaller and does not "fill" the view angle anymore. The object becomes blurred with the scenery around it.
The smaller that angle is, the fa
Re:what? (Score:2, Flamebait)
Because its _so_ deranged to know an easy(and quite important) formula from optics 101.
Sad, sad, especially on a place like this (but geek seems to be reduced to "has at some point looked into a CS course" or "knows how to download porn via bittorent", lately)
Re:Hollywood basement ? (Score:2)
Conspiratorists can analyze the laser to see it isn't a fake one all they want.
And perfect laser reflection-worthy surfaces generally don't appear in nature either.
Re:Hollywood basement ? (Score:2)
Re:Hollywood basement ? (Score:2, Informative)
Re:Hollywood basement ? (Score:3, Funny)
Re:Hollywood basement ? (Score:2)
Thank goodness (Score:5, Interesting)
Re:Thank goodness (Score:2)
Re:Thank goodness (Score:2)
Re:Sarcasm appreciated. (Score:4, Funny)
There's going to be a circus?
Sign me up!
Re:Sarcasm appreciated. (Score:3, Funny)
gives a new meaning to "Moon Bounce". And it makes the trapese child's play.
Re:Sarcasm appreciated. (Score:2)
On the other hand, if it is good, then the artist bounces off the roof to the ground, back to the roof, back to the ground, back to the roof, back...
Re:Sarcasm appreciated. (Score:2)
Re:Sarcasm appreciated. (Score:2)
Re:Sarcasm appreciated. (Score:2)
Re:Sarcasm appreciated. (Score:2)
I don't know can jump to the conclusion "there's no way humans can mine a significant fraction of the Moon's mass". We are doing a pretty good job of exhausting the Earth's "limitless" supply of fossil fuels...
Re:Sarcasm appreciated. (Score:2)
And I'm not jumping to a conclusion at all. I'm basing it on the facts. The Moon is big. You clearly have no grasp of just how big it is, since you're worried about this. In all of human history, we haven't mined more than a tiny fraction of
Re:Sarcasm appreciated. (Score:2)
Without getting into specific figures or minerals, say 100th of the mass of the moon was useful minerals. Given sufficent time and need, say we extracted this and removed it from the Moon. What would be the impact on its orbit?
I have made another comment below concerning the current excitement about extracting hy
Re:Sarcasm appreciated. (Score:2)
And I would still like to stress that you've over-estimating our ability to mine anything. Even if we had mined the entire crust of the Earth, we'd still have touched less than 0.5% of Earth's volume. (And even less of the mass.)
There are plenty of things to worry about, but this isn't one of them
Time to set up a mining colony (Score:4, Funny)
Re:Time to set up a mining colony (Score:4, Funny)
Re:Time to set up a mining colony (Score:2, Funny)
Re:Time to set up a mining colony (Score:2)
Ion cannons wouldn't help. We need losta firebats and medics.
Re:Time to set up a mining colony (Score:2)
Article was light on images... (Score:3, Funny)
Zoom (Score:3, Interesting)
Re:Zoom (Score:2)
Re:Zoom (Score:2, Insightful)
The Hubble orbits 350 miles above the earth and the average distance to the moon is 238,857 miles.
I'd hardly consider 238,500 (apprx) miles very close =-)
It's all relative (Score:2)
Re:Zoom (Score:5, Insightful)
The Hubble orbits 350 miles above the earth and the average distance to the moon is 238,857 miles.
I'd hardly consider 238,500 (apprx) miles very close =-)
Considering the Hubble routinely examines objects hundred of millions to billions of light years away from Earth (See the See the Hubble Deep Field survey [stsci.edu]), I'd consider ~239K miles to be right the fuck on top of.
Re:Zoom (Score:2)
Both thanks.
What does this have to do with the relative spatial distance between Hubble and the Moon? Are you being angry just for the sake of being angry?
Re:Zoom (Score:2)
Focal lengths are measured in millimeters, even for the hubble. Anything beyond a couple thousand METERS is pretty much considered infinity.
I saw and studied to the HDFS you quoted - the focal difference between me and you vs. me and the furthest galaxy in that shot are negligable, from an optical point of view!
Aww right, I must be an idiot. Despite the focal length of the Hubble Space Telescope being over 50 meters [hypertextbook.com]. Whatever my friend.
Re:Zoom (Score:5, Informative)
The Cameras on the Hubble don't really focus like we think of with a 35mm camera. They take exposures of various durations and with certain filters in place. Then the raw data is postprocessed on the ground and based on the raw data, the wavelength filters, etc. then "image" is constructed.
With the UV "camera" what they would be doing is taking a (TBD time) open shutter picture of the moon with the filters set to only let UV wavelengths pass to the detectors. The detectors will record the intensity of the light hitting each "pixel" of the camera ("binning") and send that data to the ground for processing. If you go to NASAwatch.com there is an article about this that actually links to the experiment definitions, process, etc that was submitted by the researcher in order to get the (very limited) time with the Instrument.
Re:Zoom (Score:2)
Re:Zoom (Score:2)
Computer imaging and enhancement doesn't really work like a camera. It works more like a biological vision system by taking multiple sets of data and interpolating them to yeild a best fit... like if you look at a really pixelated still image, you can't tell what it is, but if you look at a bunch images of the same object that are all pixelated slightly differently, you can figure out what it's supposed to look like.
Theoretically, the resolution is arbitrary- it's just a matter of how much raw data you ca
Re:Zoom (Score:2)
The worlds most boring holiday snaps... (Score:4, Funny)
I've always liked Hubble, not only for pushing back the bounds of our knowledge (and more importantly our ignorance, its made us realise there is much more we don't understand) but also for the very very cool pictures that get people interested in science.
This is a very useful and productive use of Hubble... but will it help it get more funding? I'm not sure that the chaps in the Whitehouse will get excited about finding rocks on the Moon unless they can claim that THIS was where Saddam had is WMDs.
Rock A - No oxygen
Rock B - No oxygen
Rock C - No oxygen
Rock D - A bit of metal
Rock E - A bit of oxygen
Rock F - No oxygen
When they find something the photo is going to be rubbish, even worse than when scientists try and get people excited about red dust on Mars.
I suggest that they do the colouring job on the Moon that they always do on the star systems, and make it look way cooler...
"Rock X not only has a large amount of gold, shown in gold, and oxygen, shown in blue, but also various other minerals, show in pretty rainbow colours and is resting on a mauve background which represents the futility of mans existance and the desire to expand our knowledge"
Re:The worlds most boring holiday snaps... (Score:2)
I wonder what's Hubble's spatial resolution; I think an orbiter would do a much better job.. Wouldn't they better let LRO(Lunar Reconnaissance Orbiter) do the mapping and concentrate on things that Hubble is good at, especially as time is running out?
Re:The worlds most boring holiday snaps... (Score:4, Insightful)
Re:The worlds most boring holiday snaps... (Score:2)
Re:The worlds most boring holiday snaps... (Score:2)
They will complain about all the radioactive debri left around where Los Angles used to be and how that is all W's fault too.
Re:The worlds most boring holiday snaps... (Score:2)
Re:The worlds most boring holiday snaps... (Score:2)
Well, whoever the next president is, of course. Just like how we used to bitch about Clinton, Bush Sr., Reagan, Carter, etc.
Re:The worlds most boring holiday snaps... (Score:2)
"Objects In Mirror Are Closer Than They Appear" (Score:2)
So did they have to use a flash to get a pic of the dark side of the moon?
Re:"Objects In Mirror Are Closer Than They Appear" (Score:2)
The object in the mirror is an eyeball, not the moon.
The "Moon": A Ridiculous Liberal Myth (Score:5, Funny)
Documentaries such as Enemy of the State have accurately portrayed the elaborate, byzantine network of surveillance satellites that the liberals have sent into space to spy on law-abiding Americans. Equipped with technology developed by Handgun Control, Inc., these satellites have the ability to detect firearms from hundreds of kilometers up. That's right, neighbors
Of course, this all works fine during the day, but what about at night? Even the liberals can't control the rotation of the Earth to prevent nightfall from setting in (only Joshua was able to ask for that particular favor!) That's where the "moon" comes in. Powered by nuclear reactors, the "moon" is nothing more than an enormous balloon, emitting trillions of candlepower of gun-revealing light. Piloted by key members of the liberal community, the "moon" is strategically moved across the country, pointing out those who dare to make use of their God-given rights at night!
Yes, I know this probably sounds paranoid and preposterous, but consider this. Despite what the revisionist historians tell you, there is no mention of the "moon" anywhere in literature or historical documents -- anywhere -- before 1950. That is when it was initially launched. When President Josef Kennedy, at the State of the Union address, proclaimed "We choose to go to the moon", he may as well have said "We choose to go to the weather balloon." The subsequent faking of a "moon" landing on national TV was the first step in a long history of the erosion of our constitutional rights by leftists in this country. No longer can we hide from our government when the sun goes down.
I remember... (Score:4, Interesting)
Re:I remember... (Score:3, Interesting)
Hubble can do short images of the moon with no problem, aside from the challenge of guiding. It does images of the earth all the time. These are called earth calibrations and they serve as the basis of flat fields with which HST images are calibrated. You can't see anything in them, though, because the earth is too close to focus on, and the telescope is moving at ~300 miles/min,
Re:I remember... (Score:2)
Key points from the actual article (Score:5, Interesting)
By then comparing the Hubble data to actual laboratory-studied samples that astronauts brought back from the same sites, they were able to get a clear idea just how these same minerals look through Hubble's eye. The Hubble Space Telescope can discriminate very subtle color differences on the surface," said planetary scientist Mark Robinson of Northwestern University. So subtle that Hubble can see mineralogical differences in rocks that look identical in color to the human eye, he said."
So the Hubble can in fact discern with a usable degree of precision....
"At Aristarchus, Hubble detected what appeared to be an abundance of the mineral ilmenite, which is good news, said NASA lunar scientist Michael Wargo. By heating or passing an electrical current through ilmenite, it's a simple matter to release oxygen, which can be used for breathing and for rocket fuel, he explained."
It will be easy to extract at least one useful element....
Ahhh...I'll just include the rest of the article.
"In some ways the Hubble prospecting is just the bare beginning of the next phase of lunar exploration, said Garvin. The next step will be taken by the robotic Lunar Reconnaissance Orbiter, which is being built to map out the moon's resources in details.
A second lunar probe is also being planned, all before the planned return of humans to the moon by about 2018, as directed by President George W. Bush's vision for humans in space.
In a sense, said Robinson, the Hubble prospecting experiment is giving scientists the first taste of how to interpret the deluge of lunar data that will be coming from those spacecraft.
"It will be a Niagara Falls of data," he said. "This is really going to jump start our ability to understand this data.""
So this Hubble use is part of what seems to me to be a sound plan for preparing to build a base on the moon.
Re:Key points from the actual article (Score:2)
Re:Key points from the actual article (Score:2)
Make the Moon into Swiss Cheese? (Score:2, Informative)
Re:Make the Moon into Swiss Cheese? (Score:2)
Chairface Chippendale.
Re:Make the Moon into Swiss Cheese? (Score:2)
Re:Make the Moon into Swiss Cheese? (Score:2)
Over the next few millennia, we are going to be looking for a way off this rock, and a first step is our Moon and it's resources. Hopefully, someday we'll explore the rest of the solar system and figure out a way to carry on. It's the imprint on each and every living thing on this planet. We are just going to try and take it to a higher level. You never know though, People in th
He3 is the key (Score:2, Interesting)
http://fti.neep.wisc.edu/gallery/ [wisc.edu]
and here
http://www.popularmechanics.com/science/space/1283 056.html?page=1&c=y/ [popularmechanics.com]
Re: (Score:2, Interesting)
Re:A little OT but... (Score:3, Insightful)
If you can get the math to work and sweet talk some venture capitalists then by all means do so. Believe me, people are trying. The numbers just don't work out well. Oil, or any other energy source, is cheap by comparison. The launch costs and inefficiencies in the energy transfer back to earth just don't correlate into profit.
Winds up being the same story with the rail gun. Good idea, in principle, but the devil is in the details.
-eve
Re:A little OT but... (Score:2, Interesting)
When/if oil (and coal, and natural gas) get too expensive, we'll shift our electricity generation away from those fuels and towards nuclear. Between direct use of electricty, and the generation of hydrogen for a portable fuel source, we can do/build everything we need.
Of course, these commodities aren't just used as fuels; oil provides lubrication, plastics, and lots of other refined products. Most of those can be obtained through recycling though, especially if there is plenty of electricty. Also, when t
Re:A little OT but... (Score:3, Informative)
Interested? more information here [google.com]
Re:A little OT but... (Score:2)
Re:A little OT but... (Score:2)
Re:A little OT but... (Score:3, Funny)
Re:A little OT but... (Score:2)
1. It could never survive reentry. If you didn't care about that:
2. It couldn't carry enough rocket fuel. A 747-400 Freighter has a maximum cargo capacity of about 113,000 Kg. The shuttle main tank carries about 700,000 Kg. in fuel to get the smaller, lighter shuttle into orbit, and it has two booster rockets to get it started. Before you ask about putting boosters on the 747, one booster weights more than the a fully loaded 747 does - it couldn't carry even one.
3. The boosters take the s
Space 1999 (Score:2, Funny)
http://www.space1999.org/ [space1999.org]
Re:You just know.. (Score:2)
Re:You just know.. (Score:2)
correctly, a rectenna can convert 90% of the energy contained
in microwaves into electricity.
Re:Mine asteroids instead (Score:3, Informative)
Re:Mine asteroids instead (Score:2)
Re:Mooninites (Score:2)
Re:Obligatory Dan Quayle Quote: (Score:2, Funny)
Since it's almost Halloween, I figured I'd go ahead and post a warning I found while searching for the exact Quayle quote:
Re:Polishing Up A Mistake? (Score:2)
In this case the perception is reality. Any technical spinoffs from the shuttle program came early on in its development. The program has just been about keeping people's government jobs for about the last twenty years.
Re:Is NASA trying to make geeks look bad? (Score:2)
I'll assume that the first paragraph was a dead-panned joke.
Re:Is NASA trying to make geeks look bad? (Score:2)
Sorry, I'll stop. I promise.
Re:Keep Hubble! (Score:2)
Need metallic bacteria... (Score:2)
But