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DARPA's New Hi-Tech Telescope

Posted by samzenpus on from the shiny-new-toys dept.

coondoggie writes "You can bet that if there are little red aliens running around on Mars, or spaceships patrolling other planets in our solar system for that matter, a recently powered-up telescope built by researchers at the Defense Advanced Research Projects Agency might just be able to see them. The Air Force, which operates the DARPA-developed Space Surveillance Telescope says the telescope's design, featuring unique image-capturing technology known as a curved charge coupled device system, as well as very wide field-of-view, large-aperture optics, doesn't require the long optics train of a more traditional telescopes."

20 of 89 comments (clear)

  1. I wonder what the Air Force needs to track... by PmanAce · · Score: 3, Insightful

    Will this be exclusive to Men in Black or will scientists be able to use this wonder as well?

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    Tired of my customary (Score:1)
    1. Re:I wonder what the Air Force needs to track... by deathcow · · Score: 4, Informative

      Air Force has huge departments dedicated to space.
      http://www.afspc.af.mil/units/index.asp

      They manage GPS satellites as well as scan the skies and catalog 10's of thousands of pieces of space debris.

  2. acronym fail? by jollyreaper · · Score: 3, Insightful

    Curved Charged Coupled Device? Wouldn't that be CCCD?

    --
    Kwisatz Haderach
    Sell the spice to CHOAM
    This Mahdi took Shaddam's Throne
    1. Re:acronym fail? by UnglueD · · Score: 2

      Curved Charged Coupled Device? Wouldn't that be CCCD?

      Too close to CCCP for DARP to use it.

    2. Re:acronym fail? by FSWKU · · Score: 4, Funny

      It was originally going to be "Curved Charged Coupled Photoreceptor"...but then someone realized that might send the wrong message...

      --
      "So after all this, you make my case for me. To end this stalemate, you must die..."
  3. Joking? by wcrowe · · Score: 3, Insightful

    You can bet that if there are little red aliens running around on Mars...

    You're joking, right? That telescope is going to be pointed at little humans of all colors running around on Earth.

    --
    Proverbs 21:19
    1. Re:Joking? by piripiri · · Score: 4, Informative

      You can bet that if there are little red aliens running around on Mars...

      You're joking, right? That telescope is going to be pointed at little humans of all colors running around on Earth.

      You're joking, right? You know it's a telescope and not a satellite.

    2. Re:Joking? by wcrowe · · Score: 2, Funny

      Actually I should have RTFA'd first. Apparently it is a ground based telescope. I foolishly assumed that a device named the Space Surveillance Telescope would be based in, you know, space.

      --
      Proverbs 21:19
    3. Re:Joking? by Raenex · · Score: 4, Insightful

      You know it's a telescope and not a satellite.

      Those two aren't mutually exclusive.

    4. Re:Joking? by MightyYar · · Score: 3, Insightful

      It's "tossed around" because of things like the average American "black" having 1/3 of their genes coming from European ancestors. Do they have a "race"? What about Obama? Does he have a "race"? If you posit that he's 50% "black" and 50% "white", then what of his children? They have a mother with some undetermined amount of European and African ancestry. How many generations do you try to keep track of? How many do you go back with? Do you have some kind of a genetic or physical test that can determine his "race" with any kind of scientific rigor?

      Even that chart you linked has all sorts of little red marks in the supposed purple "race". So yes, you can say things like "people with an ancestor from x region are more likely to have y trait". But that is worlds different from being able to toss people into categories. All it takes is for one of those ancestors with y trait to walk over to another part of the world and mate to throw off your classification system... that's not of very much use.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    5. Re:Joking? by MightyYar · · Score: 2

      It's the only place where races intermingle anymore.

      I still don't know how you define "race" - but you are completely wrong. People in the mountains of India look partly Chinese. People in far eastern Russia look partly Chinese. South America is almost completely racially mixed. The Caribbean is almost completely mixed. Even in Africa, you will see a wide range of skin colors that clearly indicates a mixed heritage.

      anyone who != their_native_race is dead too

      First you'd have to tell me exactly what a native race is? What arbitrary point in time do you choose to freeze the "races". Is it 600 years ago prior to the European explorations? Is it 1300 years ago when the Muslims conquered Spain? Is it 2000 years ago when the Greeks were intermingling with the Egyptians and the Jews were in Ethiopia?

      Take a look at this graphic and tell me what point in time you decided to freeze human migration and declare the races pure. Careful! If you go back 35,000 years you eliminate Native Americans as a race altogether. And if you freeze history 50,000 years ago you won't have any Europeans! But go ahead, keep trying to lump people into arbitrary bins based on their various features if it makes you feel better. Personally, I think green eyes should stay the hell away from blue eyes. God made 'em different races, after all. And since there is a genetic basis to eye color, my completely arbitrary classification must be scientific!

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    6. Re:Joking? by MightyYar · · Score: 2

      can't find a purebred human is a bit like saying we can't find a purebred dog.

      Dog breeding is similar, but different. First of all, you would never buy a "purebred" dog unless the breeder could produce a certificate proving such. That's because I could conceivably breed a golden retriever with an "unpure" dog and get something that looks just like a golden retriever. Thus, a dog "breed" is really just a paper trail and a group of similar features. Most dogs don't have a breed at all - they are mutts. So the whole concept of "breeds" is only useful for the select few who either want or need a specific kind of dog. I'm actually glad you brought up wolves... those are the natural state of dogs. Are there purebred wolves walking around?

      Where dogs differ is that the different breeds of dogs differ in ways that are much greater than the ways humans differ. Hell, a Chihuahua and a Great Dane probably can't physically even mate. There is no human analogue.

      I also think many would agree that some breeds are smarter and easier to train than others, that it's not just the same mind in the body of everything from a Chihuahua to a Great Dane.

      Right, but again you have a high amount of "purity" in dogs. Every Great Dane can have a similar temperament, because the original population of Great Danes was very very small. This is also why purebred dogs have so many genetic disorders - the gene pool is far too shallow. You can find similar human population on islands an such, but in general humans intermingle far too much to make generalizations about temperament and such. If there is strong selection pressure on a population in isolation, sure, humans are just as susceptible as dogs - though we don't get to reproductive age as fast so the effect is much slower. Humans have a knack for getting around, though.

      Even just the few centuries of slavery where only the strong were picked, survived and bred have led to quite measurable differences between Afro-Americans and Africans.

      I'd love to see your source on this. Don't you think this has just a little to do with the inter-mating with Europeans? Many of Thomas Jefferson's descendants are black, and he was not even an anomaly. How many white masters had teenage sons and female slaves? How many white masters were themselves consorting with a female slave? It was quite common.

      It's just a bit more politically correct to use intelligence rather than skin color as deciding factor, if you find any correlation though then hell is loose.

      I wouldn't ever try to argue that you will not find common traits correlate. But then this correlation is not very useful, because you'd still have to test for the trait if you actually wanted to do something. As a simple example, if science finds a correlation between math aptitude and folds at the corners of your eyes (Asian-style), you'd still be an idiot to hire a math teacher based on their race.

      Not to casually talk about genocide, but the logic is to trim the evolutionary tree much like when you trim a physical tree.

      Even if you agree with the concept, I've seen enough horribly pruned trees in my neighborhood to know that humans suck at predicting what should get cut and what should stay. In the long term, natural selection will do a far better job of keep us fit for our environment. In my opinion, people would "prune" the gene pool so that it resembled themselves... naturally, they are the most "fit".

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
  4. i wonder.... by metalmaster · · Score: 2

    Would this telescope find pieces of apollo on the moon? Jamie and Adam's interview on Colbert Report claims that modern telescopes arent capable of seeing the debris on the moon. I know they're taking a jab at the US faking a moon landing, but im still curious

  5. Re:unique image-capturing technology ? by zakaryah · · Score: 2

    The point is that the sensor in this telescope is curved, so that the curve of focus coincides with the sensor making it possible to create aberration free images. I tried to find a description of the sensor in the SST but was unsuccessful. I think the Kepler telescope's sensor approximates this technique by tiling 42 flat CCDs along a parabolic surface. I'm not sure if SST does the same thing or actually managed to manufacture a curved individual CCD like this one, although presumably much larger: eye shaped camera is shaped like an eye (engadget article)

  6. Re:unique image-capturing technology ? by blair1q · · Score: 2

    They're calling it "aberration free" but they're really saying "we're too lazy to deconvolve things".

    It's a CCD. It's going to pixellate the image. Badly. There's your aberration.

    Oh, sure, we'll all be stunned and awed at how "sharp and clear" the "images" look when we render them pixel-for-pixel on our puny monitors.

    But hold them up to the sky and they'll look like Atari game graphics by comparison.

  7. article on curved focal surfaces by trb · · Score: 4, Informative
    Here's an interesting 2003 article on curved focal surfaces, including CCDs.

    http://www.ptbmagazine.com/content/040103_ora.html

  8. Wide FoV = low magnification by Warwick+Allison · · Score: 2

    The purpose of this telescope is fast scanning of large areas, not fine detail on single distant objects. By invoking red (!) LGMs, the FA author is just doing a poor job at sensationalizing something he doesn't understand (just the sort of vacuous hype we get too much of here).

    1. Re:Wide FoV = low magnification by kyle5t · · Score: 3, Interesting

      This is not your typical astrograph. I was able to find out, I think, that the CCDs have a pixel size of 15um, which is a normal figure. But this is at f/1 (!), so that is about 0.9 arcsec/pixel. Not too shabby. Not enough to spot the little green men on Mars, though.

  9. Re:unique image-capturing technology ? by kyle5t · · Score: 2

    It is an array of "LL" type CCDs made by MIT Lincoln Laboratory. They have a pixel size of 15 um. The imaging circle diameter is anyone's guess, but I bet it's real big. A significant portion of that 3.5m aperture. This thing must have a ridiculously high image resolution, probably in the gigapixels.

  10. GEODSS replacement? by Animats · · Score: 3, Informative

    Sounds like a replacement for GEODSS.

    GEODSS, from 1980, was the first fully computerized telescope system. It basically looks at the sky, section by section, subtracts out all known objects, and reports the rest. So it finds new satellites, space junk, and even dark objects that occult stars. Three GEODSS sites are still running; a fourth is loaned out to Lincoln Labs to find and track near-Earth asteroids. (Somewhat to the annoyance of astronomers who had been discovering comets and asteroids manually, the automated Lincoln Labs GEODSS discovered them by the thousands.) Each site has at least two identical telescopes, and some have a wide-angle Schmidt.

    One of the less-often mentioned features of GEODSS is that it can illuminate a target. One telescope can be used to aim a laser at an object in low orbit, to get a clear picture of darker objects.