Nasa unveils Hubble's successor

The US space agency Nasa has unveiled a model of a space telescope that scientists say will be able to see to the farthest reaches of the universe.

The James Webb Space Telescope (JWST) is intended to replace the ageing Hubble telescope.

It will be larger than its predecessor, sit farther from Earth and have a giant mirror to enable it to see more.

Officials said the JWST - named after a former Nasa administrator - was on course for launch in June 2013.

The full-scale model is being displayed outside the Smithsonian National Air and Space Museum in the US capital, Washington DC.

It was recently shown off in Seattle at the American Astronomical Society meeting.

View: BBC News

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No, it's not a number of pixels. I mistranslated the term from french to english, I believe it is the keen vision, because yes it is a number in arc seconds. The smallest the number is, the better the keen vision is, while the opposite works for megapixels more or less

Edit : Hmmm, strangely, I read that it is pretty much the same as Hubble, except that it's in the infrared...

No, it's not a number of pixels. I mistranslated the term from french to english, I believe it is the keen vision, because yes it is a number in arc seconds. The smallest the number is, the better the keen vision is, while the opposite works for megapixels more or less

I have no idea what you are saying, an arc second is used with parallax calculations; making the unit of measure known as a parsec (a little over 3 light years). This has nothing to do with imaging. Almost any telescope capable of capturing images has a CCD, and a CCD has pixels... Not sure how the Hubble works exactly, but it captures images somehow, and I can tell you one thing, it’s not using film :-)

Still, as I said before, the most important aspect of a telescope isn't the CCD, it is the optical quality. Hubble might only do 6 megapixels per objective (it has four objectives), but that is all you need if you have superb image quality. Like in the example of seeing a fly on the moon. I can take a picture of a fly with my digital camera, that isn’t hard. The hard part is having a lens capable of resolving that fly from such a great distance.

Awesome news. but the thing isn't launching for another 6 years...even IF it's on schedule I hope the pictures it captures are worth the wait.

You guys sound like the Hubble is a POS, it's produced some of the most amazing photographs ... ever. I can't wait to see what 20 years of new technology will produce though.

friend got nice comment about this news "they should call it the BAB telescope ( Bigger And Better telescope )" lovely

Noxerus said,
What a spectacular waste of money, effort, energy and human beings.

Are you serious!!
You must be a troll. What would you rather them spend their time doing..... working on American Idol? Perhaps working at an advertising company? Or maybe trimming the hair on ornamental dogs?

Space (as in the areas *oustide* earth) is our future. Colonization of space is humankind's next great step. The more money put into space research, the better. It'll also mean that technologies used for space research can in some form, trickle down to the average consumer. Research drives innovation.

Don't be an ingorant ass.

On the contrary, studying the Universe helps us make true theories and helps us confirm or infirm them. It's no waste of money.

joeydoo said,
Are you serious!!
You must be a troll. What would you rather them spend their time doing..... working on American Idol? Perhaps working at an advertising company? Or maybe trimming the hair on ornamental dogs?

No. That would be a bigger waste of human beings, which diminishes the importance of the resources saved.

PsykX said,
On the contrary, studying the Universe helps us make true theories and helps us confirm or infirm them. It's no waste of money.

I agree. Thus, people who are qualified to do so should be studying the Universe. That is both for their own benefit, and for the benefit of their race. Right now, people who are not qualified to do that, are busy studying interstellar space.

Hmm why are they launchign this when they're also workign on launchign the series of networked telescopes that will have far higher resolution that any single telescope, no matter how large the mirror is.

Because it's cheaper, faster and safer to fix/upgrade one telescope (add new spectrograph, camera, etc) than to do it on several telescopes.

Has to be the gayest name ever for a iconic piece of hardware.. James Webb Space Telescope.. Hubble is just god! lol

My guess is people will just call it "The Webb" like the do with "The Hubble"

Heh, I guess you have to have a couple b's in your name to get a telescope named after you.

I would have thought that maybe spending more money on figuring out how we are actualy going to get to the places weve seen would have been a better idea than trying to find more places we cant go it is kinda like looking at a lollipop inside a jar ... You know you want it . But you just cant have it. :disappointed:

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