10,000 Galaxies: A Hubble Telescope Image

[Dynasty]

I had never seen this image taken by the Hubble Telescope until tonight. It is the deepest image of the universe ever taken- more than 13 billion light years from Earth.

The smallest, reddest galaxies are the most distant images and are seen when the universe was just 800 million years old.

[Vavavoom]

What website please ?

[Dynasty]

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What website please ?

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A good starting point wouuld be Wikipedia: Hubble Ultra Deep Field

[CrazyEyez]

Impossible for my feeble mind to comprehend this picture when I try to imagine the size of just one of those galaxies. It doesn't seem real.

Space is neat.

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Space is neat.

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[diebitter]

That amazing picture makes me think of this:


Just remember that you're standing on a planet that's evolving
And revolving at 900 miles an hour
That's orbiting at 19 miles a second, so it's reckoned
A sun that is the source of all our power
The sun and you and me, and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at 40,000 miles an hour
Of the galaxy we call the Milky Way

Our galaxy itself contains 100 billion stars
It's 100,000 light-years side-to-side
It bulges in the middle, 16,000 light-years thick
But out by us it's just 3000 light-years wide
We're 30,000 light-years from galactic central point
We go round every 200 million years
And our galaxy is only one of millions of billions
In this amazing and expanding universe

The universe itself keeps on expanding and expanding
In all of the directions it can whiz
As fast as it can go, at the speed of light you know
Twelve million miles a minute and that's the fastest speed there is
So remember, when you're feeling very small and insecure
How amazingly unlikely is your birth
And pray that there's intelligent life somewhere up in space
Because there's bugger all down here on Earth

[MrTrik]

I don't mean to hijack. But this thread reminded me of an article I read off Drudge the other day.

It basically said that due to Jet contrails and global warming all land based astronomy will be impossible in 40-50 years. The only telescopes that will be worth a damn are like hubble -- in orbit. It didn't address radio arrays and I don't know if clouds created by contrails or increased water vapor due to global warming affect radio signals or not. But they certainly affect any visual light instrument.

I wonder this ... if land based telescopes are useless ... does that mean that we can't see the stars in the nighttime sky as well?

[samjjones]

And this guy rules it all...

[Ming]

Do not mock me, Earth man.

[HotPants]

[ QUOTE ]
I don't mean to hijack. But this thread reminded me of an article I read off Drudge the other day.

It basically said that due to Jet contrails and global warming all land based astronomy will be impossible in 40-50 years. The only telescopes that will be worth a damn are like hubble -- in orbit. It didn't address radio arrays and I don't know if clouds created by contrails or increased water vapor due to global warming affect radio signals or not. But they certainly affect any visual light instrument.

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hmmm I'm calling BS on this. I've talked to a lot of Astronomers, even did an honours thesis in astronomy, and I've never heard about this

I'd say unlikely at most. They've developed some bad ass techniques to counteract the atmoshpere's effects on incoming radiation from space

Nerd tangent:

A cool technique is where they shine a laser up into the sky while observing, and create an artificial 'star' since the laser lights up some dust in the atmosphere (I forget what altitude). Then, since the scientists already know exactly how this artificial star should look like, they can be constantly changing the dish (they have like 100's of individual pressure panels all under the dish so they can slightly adjust a small piece of the dish) to keep the artificial star looking the way it should had the atmosphere not f'ed with the photons bouncing off the dust, and therefore they can negate a lot of the effect the atmosphere has on the radiation from space.

The most interesting thing I reckon about this technique, is they only discovered kind of recently (like ~decade maybe) but the US government had known about it for a long time. They were shooting a laser beam from there spy satellites down onto the earth, so they could adjust for the effects the atmosphere has on the photons going from the surface of the earth to the satellite, sort of in reverse of the way the astronomers do it. And of course it was top secret for a while

Oh yeah, cool pic

edit: yeah and the astronomers didn't actually discover it independently, the technology was declassified