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

Skip to comments.

Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - Jupiter in Ultraviolet from Hubble
NASA ^ | 27 Dec, 2025 | Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt

Posted on 12/27/2025 10:14:50 AM PST by MtnClimber

Explanation: Jupiter looks a bit different in ultraviolet light. To better interpret Jupiter's cloud motions and to help NASA's robotic Juno spacecraft understand the planetary context of the small fields that it sees, the Hubble Space Telescope was being directed to regularly image the entire Jovian giant. The colors of Jupiter being monitored go beyond the normal human visual range to include both ultraviolet and (not pictured) infrared light. Featured from 2017, Jupiter appears different in near ultraviolet light, partly because the amount of sunlight reflected back is distinct, giving differing cloud heights and latitudes discrepant brightnesses. In the near UV, Jupiter's poles appear relatively dark, as does its Great Red Spot and a smaller (optically) white oval to the right. The String of Pearl storms farther to the right, however, are brightest in near ultraviolet, and so here appear (false-color) pink. Jupiter's largest moon Ganymede appears on the upper left. Juno continues on a looping 33-day orbit around Jupiter, while Earth-orbiting Hubble is aging and now relies on a single stabilizing gyroscope.


TOPICS: Astronomy; Science
KEYWORDS: apod; nasa
Message from Jim Robinson:

Dear FRiends,

We need your continuing support to keep FR funded. Your donations are our sole source of funding. No sugar daddies, no advertisers, no paid memberships, no commercial sales, no gimmicks, no tax subsidies. No spam, no pop-ups, no ad trackers.

If you enjoy using FR and agree it's a worthwhile endeavor, please consider making a contribution today:

Click here: to donate by Credit Card

Or here: to donate by PayPal

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794

Thank you very much and God bless you,

Jim

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 12/27/2025 10:14:50 AM PST by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

2 posted on 12/27/2025 10:15:14 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: 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; Agatsu77; ...

Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

Tomorrow will be the last of the APOD posts that were delayed due to the government shutdown.


3 posted on 12/27/2025 10:17:19 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

The Date should have been 11 Nov, 2025. My mistake. November 12 is the last post that was delayed by the government shutdown. Postings will resume at one per day after tomorrow.


4 posted on 12/27/2025 10:23:15 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 3 | View Replies]

To: MtnClimber

Dang.

Watch you got.


5 posted on 12/27/2025 10:26:39 AM PST by waterhill (This world is not my home, I'm just passin' through, you gotta come up to The House.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

6 posted on 12/27/2025 10:34:41 AM PST by Diogenesis (Si vis pacem, para bellum)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Diogenesis

7 posted on 12/27/2025 10:39:17 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 6 | View Replies]

To: MtnClimber

8 posted on 12/27/2025 12:17:57 PM PST by Diogenesis (Si vis pacem, para bellum)
[ Post Reply | Private Reply | To 7 | View Replies]

To: MtnClimber

I lost that one to Danny Smith in a game of marbles.


9 posted on 12/27/2025 12:57:54 PM PST by blueunicorn6 ("A crack shot and a good dancer” )
[ Post Reply | Private Reply | To 2 | View Replies]

To: Diogenesis

Is that a yarmulke? Is Jupiter really Jewpiter?


10 posted on 12/27/2025 1:06:30 PM 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 8 | 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