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Astronomy Picture of the Day - The Images not Posted during the Government Shutdown - SN Encore: A Second Supernova Seen Several Times
NASA ^ | 7 Oct, 2025 | Images Credit: Webb (main): NASA, ESA, CSA, STScI, J. Pierel (STScI) & A. Newman (Carnegie Inst. for

Posted on 11/22/2025 11:39:16 AM PST by MtnClimber

Explanation: Now a second supernova in this same galaxy is repeating. The cause is the gravitational lens effect of a massive foreground cluster of galaxies (MACS J0138) -- it creates multiple images of a perfectly aligned background galaxy (MRG-M0138). What's particularly interesting is that this background galaxy has young stars that keep blowing up. And images of each supernova explosion keep coming to us multiple times through different paths through the cluster. The original lensed supernova set, shown in the rollover, is called Requiem and was first seen by the Hubble Space Telescope in 2016. This second lensed supernova set is called Encore and was first seen by the Webb Space Telescope in 2023. More images from these supernovas are predicted to be on the way, and exactly when they arrive should help humanity to better understand the mass distribution of the galaxy cluster, the supernovas themselves, and possibly even the universe.


TOPICS: Astronomy; Science
KEYWORDS: apod; nasa
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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 11/22/2025 11:39:16 AM PST by MtnClimber
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To: MtnClimber

2 posted on 11/22/2025 11:39:38 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

3 posted on 11/22/2025 11:40:01 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; A Navy Vet; A_perfect_lady; abb; AFB-XYZ; AFPhys; ...
Pinging the APOD list

πŸͺ 🌟 🌌 πŸ”

4 posted on 11/22/2025 11:41:12 AM PST by MtnClimber (For photos of scenery, wildlife and climbing, click on my screen name for my FR home page.)
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To: MtnClimber

“young stars that keep blowing up”?

Sounds like a sci-fi war going on out there....


5 posted on 11/22/2025 12:42:34 PM PST by doorgunner69
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To: MtnClimber

It looks like a celestial bow and arrow. Either that, or the Death Star has been very busy.


6 posted on 11/22/2025 1:31:47 PM PST by telescope115 (Ad Astra, Ad Deum…)
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To: MtnClimber
We're looking at a warpage between time and space. - that stoned guy
7 posted on 11/22/2025 1:37:28 PM PST by NavyShoe
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To: telescope115

Similar to imagery from movie Interstellar
Black hole stuff


8 posted on 11/22/2025 3:16:33 PM PST by George from New England (escaped CT back in 2006)
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To: doorgunner69

#5 It is “Q” continuum in a civil war.


9 posted on 11/22/2025 7:40:21 PM PST by minnesota_bound (Making money now. Still want much more.)
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