the Carina Nebula looks like a Christmas Card.

[SleeplessinSoCal]

Doesn't it?

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

[dameatball]

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

[Deuxcents]

2. Why are the backgrounds blue?

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

[Wounded Bear]

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.

[hunter]

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.

[Wounded Bear]

5. I stand corrected. Thanks...

[Deuxcents]

6. Thanks hunter n Wounded Bear..

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

[SleeplessinSoCal]

7. Totally agree.

[SleeplessinSoCal]

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

A Closeup view...

[lastlib]

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

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

[SleeplessinSoCal]

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

[SCantiGOP]

11. Interesting

Thanks for the post