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Astronomy Picture of the Day -- The Hubble Extreme Deep Field
NASA ^ | October 14, 2012 | (see photo credit)

Posted on 10/14/2012 3:04:01 AM PDT by SunkenCiv

Explanation: What did the first galaxies look like? To help answer this question, the Hubble Space Telescope has just finished taking the eXtreme Deep Field (XDF), the deepest image of the universe ever taken in visible light. Pictured above, the XDF shows a sampling of some of the oldest galaxies ever seen, galaxies that formed just after the dark ages, 13 billion years ago, when the universe was only a few percent of its present age. The Hubble Space Telescope's ACS camera and the infrared channel of the WFPC3 camera took the image. Combining efforts spread over 10 years, the XDF is more sensitive, in some colors, than the original Hubble Deep Field (HDF), the Hubble Ultra Deep Field (HUDF) completed in 2004, and the HUDF Infrared completed in 2009. Astronomers the world over will likely study the XDF for years to come to better understand how stars and galaxies formed in the early universe.

October 14, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; hst; science
[Credit: NASA, ESA, G. Illingworth, D. Magee, and P. Oesch (UCSC), R. Bouwens (Leiden Obs.), and the XDF Team]

1 posted on 10/14/2012 3:04:08 AM PDT by SunkenCiv
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All of 'em more than 6014 light-years distant.

2 posted on 10/14/2012 3:04:59 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

It looks much, much nicer in larger size.

3 posted on 10/14/2012 3:06:31 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv
All of 'em more than 6014 light-years distant.

Makes me wonder what they look like in the present.

4 posted on 10/14/2012 3:30:12 AM PDT by no-to-illegals (Please God, Protect and Bless Our Men and Women in Uniform with Victory. Amen.)
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To: no-to-illegals

This is true. For perspective, when you look up towards the sun, you’re seeing what it looked like (and where it was) eight minutes prior.


5 posted on 10/14/2012 3:34:16 AM PDT by Olog-hai
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To: Olog-hai
Is a most fascinating place which is called the present when in the present one can view only the past.
6 posted on 10/14/2012 4:02:05 AM PDT by no-to-illegals (Please God, Protect and Bless Our Men and Women in Uniform with Victory. Amen.)
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To: SunkenCiv
eXtreme Deep Field 13 billion years ago, when the universe was only a few percent of its present age.

Ah, I remember the good old days!

We didn’t have easy like you kids do.

We had to walk through knee deep quasars up hill to school; both ways!

7 posted on 10/14/2012 4:17:00 AM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
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To: SunkenCiv

Thank You, Civ, for today’s present.


8 posted on 10/14/2012 4:35:05 AM PDT by left that other site (Worry is the Darkroom that Develops Negatives.)
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To: Olog-hai
Light time between the earth and moon.

Photobucket

The New Horizons spacecraft is currently about 3 hours and 25 light minutes from earth.
9 posted on 10/14/2012 4:47:25 AM PDT by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: Pontiac

:’)


10 posted on 10/14/2012 5:15:38 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: left that other site

My pleasure!


11 posted on 10/14/2012 5:15:45 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: no-to-illegals
Makes me wonder what they look like in the present.

Also keep in mind that light from some of these galaxies and photo-galaxies have been red-shifted to significantly longer wavelengths than they started out due to the universe's expansion. What we are seeing now in the 'visible' range may have started out in the UV or even shorter. Galaxies can emit very different images in visible vs UV and other ranges.

12 posted on 10/14/2012 5:39:50 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: no-to-illegals

From NASA.gov:

“An astronomical object can look very different depending on what wavelength is used in its detection. The object’s appearance often changes across the electromagnetic spectrum because various physical processes result in emission in different wavelength regions. Images of emission can be made by mapping brightness to colors (see “Making an Image”). For example, the optical image of the Andromeda galaxy (below left) shows glowing stars. And dark dust lanes trace out a spiral arm structure. An infrared image of the galaxy (below right) shows several concentric rings of dust rather than spiral arms. The dust is too cold (-260 degree C) to be detected in optical light.

Below are five images of the galaxy M 33. [see link]

Each image is taken in a different wavelength region.

In the X-ray image, we see very hot, diffuse interstellar gas, and bright point-like X-ray sources, such as X-ray binaries.

The brightness in the ultraviolet image indicates star formation activity. Stars are visible in the optical image.

Red supergiant stars and dust heated by massive star formation are highlighted in the near-infrared image, which looks similar to the optical image.

The radio image maps out hydrogen gas in the galaxy. The red coloring is indicative of gas moving away from our line of sight. The blue colors gas moving toward us (a phenomena described by Doppler shift).”

http://mwmw.gsfc.nasa.gov/mmw_across.html


13 posted on 10/14/2012 5:45:32 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: cripplecreek
Light time between the earth and moon.

Is about 1-1/4 seconds.

14 posted on 10/14/2012 5:47:16 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: cripplecreek
The New Horizons spacecraft is currently about 3 hours and 25 light minutes from earth.

For those who aren't aware, one light-second is about 186,000 miles.

So that's 186,000 x 60secs x 60mins x ~3.5 (miles). = 2,343,600,000 miles (~2.3 billion miles)

15 posted on 10/14/2012 5:54:42 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: ETL

So that’s 186,000 x 60secs x 60mins x ~3.5 (miles)

correction: (hours) not (miles)


16 posted on 10/14/2012 6:04:24 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: Pontiac

Ah, I remember the good old days!

We didn’t have easy like you kids do.

We had to walk through knee deep quasars up hill to school; both ways!


Yes, and it was really exciting getting past those black holes. Seeing them was the first challenge.


17 posted on 10/14/2012 6:05:20 AM PDT by bytesmith
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To: Pontiac
Ah, I remember the good old days! We didn’t have it easy like you kids do. We had to walk through knee deep quasars up hill to school; both ways!

Lol. I'm a big Monty Python fan too.

Four Yorkshiremen:
http://www.youtube.com/watch?v=13JK5kChbRw

18 posted on 10/14/2012 6:16:43 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: Pontiac

Same as my Dad, apparently!


19 posted on 10/14/2012 6:21:27 AM PDT by willgolfforfood
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To: ETL

Thank You.


20 posted on 10/14/2012 6:24:24 AM PDT by no-to-illegals (Please God, Protect and Bless Our Men and Women in Uniform with Victory. Amen.)
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To: no-to-illegals

You’re welcome. I’m not sure how much the light from the more distant galaxies and proto-galaxies were red-shifted to longer wavelengths, but their emissions have been in route for billions of years. In some cases, nearly 13 billion. However, I don’t think much if any, now observable in visible light, started out much shorter than UV. But I could be wrong.


21 posted on 10/14/2012 6:35:00 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: willgolfforfood

Life was tough but we were happy.


22 posted on 10/14/2012 7:12:06 AM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
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To: Pontiac
Four Yorkshiremen - Monty Python:

Eric Idle: Who would have thought, thirty years ago, we’d all be sitting here drinking Chateau de Chaselet, eh?

All: Aye, aye.

Michael Palin: Them days we were glad to have the price of a cup of tea.

Graham Chapman: Right! A cup of cold tea!

Michael Palin: Right!

Eric Idle: Without milk or sugar!

Terry Jones: Or tea!

Michael Palin: In a cracked cup and all.

Eric Idle: Oh, we never used to have a cup! We used to have to drink out of a rolled-up newspaper!

Graham Chapman: The best we could manage was to suck on a piece of damp cloth.

Terry Jones: But you know, we were happy in those days, although we were poor.

Michael Palin: Because we were poor!

Terry Jones: Right!

Michael Palin: My old dad used to say to me: “Money doesn’t bring you happiness, son!”

Eric Idle: He was right!

Michael Palin: Right!

Eric Idle: I was happier then and I had nothing! We used to live in this tiny old tumbled-down house with great big holes in the roof.

Graham Chapman: House! You were lucky to live in a house! We used to live in one room, all twenty-six of us, no furniture, half the floor was missing, we were all huddled together in one corner for fear of falling.

Terry Jones: You were lucky to have a room! We used to have to live in the corridor!

Michael Palin: Oh, we used to dream of living in a corridor! Would have been a palace to us! We used to live in an old watertank on a rubbish tip. We’d all woke up every morning by having a load of rotten fish dumped all over us! House, huh!

Eric Idle: Well, when I say a house, it was just a hole in the ground, covered by a sheet of tarpaulin, but it was a house to us!

Graham Chapman: We were evicted from our hole in the ground. We had to go and live in a lake!

Terry Jones: You were lucky to have a lake! There were 150 of us living in a shoebox in the middle of the road!

Michael Palin: A cardboard box?

Terry Jones: Aye!

Michael Palin: You were lucky! We lived for three months in a rolled-up newspaper in a septic tank! We used to have to get up every morning, at six o’clock and clean the newspaper, go to work down the mill, fourteen hours a day, week in, week out, for six pence a week, and when we got home, our dad would thrash us to sleep with his belt!

Graham Chapman: Luxury! We used to have to get up out of the lake at three o’clock in the morning, clean the lake, eat a handful of hot gravel, work twenty hours a day at mill, for two pence a month, come home, and dad would beat us around the head and neck with a broken bottle, if we were lucky!

Terry Jones: Well, of course, we had it tough! We used to have to get up out of the shoebox in the middle of the night, and lick the road clean with our tongues! We had to eat half a handful of freezing cold gravel, work twenty-four hours a day at mill for four pence every six years, and when we got home, our dad would slice us in two with a breadknife!

Eric Idle: Right! I had to get up in the morning, at ten o’clock at night, half an hour before I went to bed, eat a lump of cold poison, work twenty-nine hours a day down mill and pay millowner for permission to come to work, and when we got home, our dad would kill us and dance about on our graves, singing Hallelujah!

Michael Palin: Aah. And you trying to tell the young people of today that, and they won’t believe you!

All: No, no they won’t!

http://www.montypython.net/hbowlmm2.php

23 posted on 10/14/2012 7:18:10 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: SunkenCiv

I saw that same thing right after that guy kicked me in the jaw. Then, I guess I must have seen a black hole for a few minutes.


24 posted on 10/14/2012 7:49:23 AM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6

That can lead to cognitive problems, like division by Cassini errors.


25 posted on 10/14/2012 8:14:00 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: ETL
Ah, that shoe box in the middle of the road it was like a palace to us because we had each other.

Kids today don’t understand.

26 posted on 10/14/2012 8:20:59 AM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
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To: no-to-illegals

Actually, after thinking about it a little more, if the image we see today is now in the visible range of the EM spectrum (if red-shifted from UV to visible), it will just be the UV information made visible via universal expansion. Normally, UV and the other forms of non-visible EM radiation needs to be converted (color coded) in order to provide an image we can see.


27 posted on 10/14/2012 8:24:09 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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Comment #28 Removed by Moderator

Comment #29 Removed by Moderator

To: no-to-illegals

Oops! Post 28 and 29 were meant for a different tread, different poster. I asked the mod to remove them.


30 posted on 10/14/2012 8:36:12 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: SunkenCiv

I don’t have any cognitive problems. I don’t have any cognitive problems. What?


31 posted on 10/14/2012 9:20:20 AM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: SunkenCiv

These are blasts from the past of 6,000 years ago and effects from the Prime Cause.


32 posted on 10/14/2012 9:25:35 AM PDT by TheOldLady
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To: SunkenCiv

Oh, those Cassini never make any mistakes. I was at a Cassini in Las Vegas and I told them that I meant for my money to be on 12 instead of 17 and they acted like they had never made a mistake in their life. Then, when I started yelling, they threw me out. Well, they’ll never see me again. And I’m a big spender, too. I’ve bet twenty, thirty bucks somedays. Not all at one time, mind you.


33 posted on 10/14/2012 9:27:48 AM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: blueunicorn6

;’)


34 posted on 10/14/2012 9:54:16 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: blueunicorn6

Oleg Cassini ?


35 posted on 10/14/2012 10:08:11 AM PDT by fieldmarshaldj (Resist We Much)
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To: SunkenCiv
Remarkable! Thanks, SunkenCiv! ................................................ FRegards
36 posted on 10/14/2012 5:41:16 PM PDT by gonzo ( Buy more ammo, dammit! You should already have the firearms ... FRegards)
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