Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day -
NASA ^ | 2 Mar, 2025 | Image Credit: NASA, ESA, Hubble; Sonification: G. Salvesen; Data: M. Rafelski et al.

Posted on 03/02/2025 11:52:21 AM PST by MtnClimber

Explanation: Have you heard about the Hubble Ultra-Deep Field? Either way, you've likely not heard about it like this -- please run your cursor over the featured image and listen! The Hubble Ultra-Deep Field (HUDF) was created in 2003-2004 with the Hubble Space Telescope staring for a long time toward near-empty space so that distant, faint galaxies would become visible. One of the most famous images in astronomy, the HUDF is featured here in a vibrant way -- with sonified distances. Pointing to a galaxy will play a note that indicates its approximate redshift. Because redshifts shift light toward the red end of the spectrum of light, they are depicted here by a shift of tone toward the low end of the spectrum of sound. The further the galaxy, the greater its cosmological redshift (even if it appears blue), and the lower the tone that will be played. The average galaxy in the HUDF is about 10.6 billion light years away and sounds like an F#. What's the most distant galaxy you can find?


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; hst; hudf; nasa; science
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 03/02/2025 11:52:21 AM PST by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

2 posted on 03/02/2025 11:52:41 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

🪐 🌟 🌌 🍔

3 posted on 03/02/2025 11:53:28 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

That would make a cool ceiling wallpaper.


4 posted on 03/02/2025 12:14:38 PM PST by JZelle
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

So KEWL! Thanks Climber!


5 posted on 03/02/2025 12:15:47 PM PST by 1FreeAmerican
[ Post Reply | Private Reply | To 3 | View Replies]

To: MtnClimber
What's the most distant galaxy you can find?

A quick search got me a galaxy 12.9 Billion Light Years in the upper left of the picture.

6 posted on 03/02/2025 12:31:50 PM PST by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

The light from those galaxies travels for 10,600,000,000 years, tirelessly, at more than 186,000 miles per second, no rest stops, till it reaches the earth. Then splat! Journey is over. Of course the light that misses the earth keeps going.


7 posted on 03/02/2025 12:33:52 PM PST by Verginius Rufus
[ Post Reply | Private Reply | To 1 | View Replies]

To: Pontiac

I found 3 that are 13.1 billion light years. They are lower left corner below the round blue galaxy, below the red oval galaxy near the very center, and lower left of another bluish galaxy in the upper right. I don’t plan on doing this all day, though.


8 posted on 03/02/2025 12:36:11 PM PST by Telepathic Intruder
[ Post Reply | Private Reply | To 6 | View Replies]

To: MtnClimber

This is a pretty cool one.


9 posted on 03/02/2025 12:56:35 PM PST by Bullish (...And just like that I was kicked off the Ping list.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

This is a pretty cool one.


10 posted on 03/02/2025 12:56:49 PM PST by Bullish (...And just like that I was kicked off the Ping list.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Verginius Rufus

There is apparent age and true age, they are not the same.


11 posted on 03/02/2025 1:00:03 PM PST by Fungi
[ Post Reply | Private Reply | To 7 | View Replies]

To: MtnClimber

Consider how many civilizations have risen and fell out there since that light got here.


12 posted on 03/02/2025 1:54:19 PM PST by doorgunner69 (Your oath of enlistment has no expiration date)
[ Post Reply | Private Reply | To 1 | View Replies]

To: MtnClimber

Pretty neat presentation!


13 posted on 03/02/2025 4:36:58 PM PST by telescope115 (I NEED MY SPACE!!! 🔭)
[ Post Reply | Private Reply | To 3 | View Replies]

To: MtnClimber

They should have focused better. The objects are all blurry.
Also zoom in... 😁 🔭


14 posted on 03/03/2025 1:35:26 AM PST by minnesota_bound (Need more money to buy everything now)
[ Post Reply | Private Reply | To 2 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson