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Tue Jul 12, 2022, 06:32 PM

the Carina Nebula looks like a Christmas Card.


Doesn't it?

BBC News - James Webb: Nasa space telescope delivers spectacular pictures
https://www.bbc.co.uk/news/science-environment-62140044

11 replies, 1036 views

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Arrow 11 replies Author Time Post
Reply the Carina Nebula looks like a Christmas Card. (Original post)
SleeplessinSoCal Jul 12 OP
dameatball Jul 12 #1
Deuxcents Jul 12 #2
Wounded Bear Jul 12 #3
hunter Jul 12 #4
Wounded Bear Jul 12 #5
Deuxcents Jul 12 #6
SleeplessinSoCal Jul 12 #7
SleeplessinSoCal Jul 12 #8
lastlib Jul 15 #9
SleeplessinSoCal Jul 15 #10
SCantiGOP Jul 21 #11

Response to SleeplessinSoCal (Original post)

Tue Jul 12, 2022, 06:40 PM

1. It certainly does. Looks like a mountain range.

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Response to SleeplessinSoCal (Original post)

Tue Jul 12, 2022, 07:29 PM

2. Why are the backgrounds blue?

I thought our blue skies on Earth were a reflection from the oceans..just wondering..

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Response to Deuxcents (Reply #2)

Tue Jul 12, 2022, 08:11 PM

3. Blue skies are due to light diffusion through our predominantly nitrogen atmosphere.

No a "reflection." Oceans are blue because that is the wavelength of light that penetrates deepest and is reflected back to the surface.

Shallower seas are often green.

In those pictures, the colors are probably enhanced and jiggered to make non-visible light visible to our eyes. Probably how the black of deep space appears blue.

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Response to Wounded Bear (Reply #3)

Tue Jul 12, 2022, 08:23 PM

4. That's glowing dust making the picture blue there...

... dust illuminated by the bright stars.

Notice how the sky is black in the upper left corner or the image.

Likewise there is bluish dust glowing in the foreground of the nebula.

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Response to hunter (Reply #4)

Tue Jul 12, 2022, 08:33 PM

5. I stand corrected. Thanks...

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Response to SleeplessinSoCal (Original post)

Tue Jul 12, 2022, 10:07 PM

6. Thanks hunter n Wounded Bear..

This is the best place to learn new n interesting subjects..🙏

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Response to Deuxcents (Reply #6)

Tue Jul 12, 2022, 11:09 PM

7. Totally agree.

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Response to SleeplessinSoCal (Original post)

Tue Jul 12, 2022, 11:13 PM

8. This is the Christmas Card I was thinking of...

A Closeup view...

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Response to SleeplessinSoCal (Original post)

Fri Jul 15, 2022, 12:03 AM

9. I keep thinking about the movie 2001: A Space Odyssey....

when astronaut David Bowman exclaims, "My GOD!! It's full of STARS!!"

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Response to lastlib (Reply #9)

Fri Jul 15, 2022, 01:56 AM

10. I wonder how vast we thought the universe was in 1968...

Didn't know about 1925 being such a breakthrough year.

January 1, 1925: The Day We Discovered the Universe
Thanks to Edwin Hubble, we now can better comprehend the true scale of the universe.


https://www.discovermagazine.com/the-sciences/january-1-1925-the-day-we-discovered-the-universe

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Response to SleeplessinSoCal (Reply #10)

Thu Jul 21, 2022, 01:13 AM

11. Interesting

Thanks for the post

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