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Astronomy Picture of the Day - Planetary Nebula Mz3: The Ant Nebula
NASA ^ | 13 Jul, 2025 | Image Credit: NASA, ESA, R. Sahai (JPL) et al., Hubble Heritage Team

Posted on 07/13/2025 12:56:06 PM PDT by MtnClimber

Explanation: Why isn't this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not round? Clues might include the high 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star featured here at the nebula's center. One possible answer is that Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. Since the central star appears to be so similar to our own Sun, astronomers hope that increased understanding of the history of this giant space ant can provide useful insight into the likely future of our own Sun and Earth.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
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 07/13/2025 12:56:07 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 07/13/2025 12:57:32 PM PDT 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

🪐 🌟 🌌 🍔

3 posted on 07/13/2025 12:58:46 PM PDT 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
Antmusic of the spheres...
4 posted on 07/13/2025 1:36:46 PM PDT by null and void (Democrats: fake news, fake presidents, fake beliefs, fake policies, fake protesters & fake voters!)
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To: MtnClimber

Interesting dynamics going on there.


5 posted on 07/13/2025 1:42:06 PM PDT by telescope115 (I NEED MY SPACE!!! 🔭)
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To: MtnClimber

That makes my skin crawl.


6 posted on 07/13/2025 2:01:14 PM PDT by DannyTN
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To: MtnClimber
A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas.

I'll use that next time my passengers have to roll down the car windows.

TacoBellItems

7 posted on 07/13/2025 6:34:39 PM PDT by MikelTackNailer (Six stars of the Northern Cross, In mourning for their sister's loss...)
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To: MtnClimber

Pingaling.


8 posted on 07/14/2025 5:34:43 AM PDT by SkyDancer ( ~ Am Yisrael Chai ~)
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