Ethan Vishniac πŸ‡ΊπŸ‡¦πŸ‡¨πŸ‡¦πŸ‡ΊπŸ‡Έ's Avatar

Ethan Vishniac πŸ‡ΊπŸ‡¦πŸ‡¨πŸ‡¦πŸ‡ΊπŸ‡Έ

@ethan-vishniac.bsky.social

Cantankerous astrophysicist and editor. Grandfather and dog owner. I could probably drink less coffee. I think about magnetized turbulence and what it means for the universe. Orcid 0000-0002-2307-3857

1,072 Followers  |  1,049 Following  |  640 Posts  |  Joined: 16.06.2023  |  1.9578

Latest posts by ethan-vishniac.bsky.social on Bluesky

AAS Journal Author Series: Aldana Grichener on 2025ApJS..279...49G
YouTube video by AAS AAS Journal Author Series: Aldana Grichener on 2025ApJS..279...49G

youtu.be/2NSL6JxERBM
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AAS Journal Author Series: Aldana Grichener on 2025ApJS..279...49G

Aldana Grichener (University of Arizona) chats about her article on neural networks applied to nuclear reaction networks.

19.10.2025 20:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Ah. Now I get it. I think you reversed the intent of my post. I was comparing the clueless 1/4 with the percentage that vote R.

16.10.2025 21:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I think my late father-in-law might have voted Republican once. I’m not really sure. Anyhow, my recollection is that estimates of the R share of the Jewish vote is highly uncertain but generally has an upper bound of 30%. This article says about 3/4 think that the R stance is fake. Ergo..

16.10.2025 18:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

For comparison, this is slightly less than the percentage that tend to vote Republican.

16.10.2025 15:24 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Physics Insight

I know so many authors like this.
xkcd.com/3154/

15.10.2025 15:34 β€” πŸ‘ 15    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
AAS Journal Author Series: Jirong Mao on 2025ApJ...990...12M
YouTube video by AAS AAS Journal Author Series: Jirong Mao on 2025ApJ...990...12M

youtu.be/Pmxv0BJj35w
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AAS Journal Author Series: Jirong Mao on 2025ApJ...990...12M

Jirong Mao (Yunnan Observatories) chats about his article on the emergence of shocks in low-angular-momentum accretion flow around black holes.

14.10.2025 15:22 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

youtu.be/yIdIoOnMP9c

AS Journal Author Series: Yujie Lian and Zhichen Pan on 2025ApJS..279...51L
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Yujie Lian (Beijing Normal University) and Zhichen Pan (Chinese Academy of Sciences) chat about their article on pulsar discoveries in globular clusters.

10.10.2025 14:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Naila Martinez on 2025RNAAS...9..173P
YouTube video by AAS AAS Journal Author Series: Naila Martinez on 2025RNAAS...9..173P

youtu.be/OLqLQQ-ow14
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AAS Journal Author Series: Naila Martinez on 2025RNAAS...9..173P

Naila Martinez (Universidad de Buenos Aires) chats about her article on Sulfur in star forming clouds.πŸ”­

10.10.2025 13:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

A difficult but absolutely vital decision. Respect.

10.10.2025 13:31 β€” πŸ‘ 12    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Anicia Arredondo on 2025PSJ.....6..195A
YouTube video by AAS AAS Journal Author Series: Anicia Arredondo on 2025PSJ.....6..195A

youtu.be/JUgNSPv94LI
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AAS Journal Author Series: Anicia Arredondo on 2025PSJ.....6..195A

Anicia Arredondo (Southwest Research Institute) chats about her article on the near Earth asteroid (142) Polana.

08.10.2025 19:14 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Child Long COVID Risk Doubles After Second Infection Children and adolescents were twice as likely to experience long COVID after catching COVID for the second time.

I hope people will repost this
Please
respiratory-therapy.com/disorders-di...

Kids are suffering

01.10.2025 07:11 β€” πŸ‘ 39    πŸ” 36    πŸ’¬ 1    πŸ“Œ 4

They honestly believe that the way to accelerate science is to create a super intelligent AI, by any means necessary. Human scientists, except for those working on this, are unnecessary.

01.10.2025 12:01 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
AAS Journal Author Series: Ke-Jung (Ken) Chen on 2025ApJ...988L..67C
YouTube video by AAS AAS Journal Author Series: Ke-Jung (Ken) Chen on 2025ApJ...988L..67C

youtu.be/9GYyRchGUp4
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AAS Journal Author Series: Ke-Jung (Ken) Chen on 2025ApJ...988L..67C

Ken Chen (Academia Sinica) chats about his article on the first star-forming clouds.

28.09.2025 18:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Daniel Bamberger on 2025RNAAS...9..174B
YouTube video by AAS AAS Journal Author Series: Daniel Bamberger on 2025RNAAS...9..174B

youtu.be/RDXQzPWouQM
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AAS Journal Author Series: Daniel Bamberger on 2025RNAAS...9..174B

Daniel Bamberger (Northolt Branch Observatories) chats about his article on a centaur in an orbital resonance with Uranus.

24.09.2025 15:56 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
a stuffed white cat is sitting on a box with its legs crossed . Alt: a stuffed white cat is sitting on a box with its legs crossed looking baffled.

I will check with IoP.

22.09.2025 18:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
AAS Journal Author Series: Ruella Ordinaria on 2025RNAAS...9..175O
YouTube video by AAS AAS Journal Author Series: Ruella Ordinaria on 2025RNAAS...9..175O

youtu.be/zQ4kcvDUQU4
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AAS Journal Author Series: Ruella Ordinaria on 2025RNAAS...9..175O

Ruella Ordinaria (York University) chats about her research note on the Europa Clipper mission.

21.09.2025 23:24 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I was going to add something here, but there’s an eloquent speech by AOC which is on point and much better than anything I could write.

19.09.2025 19:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Speaking ill of the dead is rude, and usually pointless. It causes pain to their families and arrives too late for them to improve their behavior. However, when people insist on deifying someone who, when alive, was a terrible person, I’m willing to make an exception.

19.09.2025 19:01 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Tbf he retired, which was a necessary step towards solving some important problems.

16.09.2025 16:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Richard Zeebe and David Hernandez on 2025AJ....170...71Z
YouTube video by AAS AAS Journal Author Series: Richard Zeebe and David Hernandez on 2025AJ....170...71Z

youtu.be/Jx5SxWqpjjI
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AAS Journal Author Series: Richard Zeebe and David Hernandez on 2025AJ....170...71Z

Richard Zeebe (University of Hawaii at Manoa) and David Hernandez (Yale University) chat about their article on stellar flybys of the solar system and their (lack of) effect on the Earth.

16.09.2025 14:34 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Steve Howell on 2025ApJ...988L..47H
YouTube video by AAS AAS Journal Author Series: Steve Howell on 2025ApJ...988L..47H

youtu.be/68AbtPxLR0M
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AAS Journal Author Series: Steve Howell on 2025ApJ...988L..47H

Steve Howell (NASA Ames Research Center) chats about his article on the tentative detection of a companion to Betelgeuse.

12.09.2025 14:06 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Here are some things that Charlie Kirk said in his life.

The man is dead, and so it only seems fair to share his legacy by cataloguing the values he spread while alive.

10.09.2025 23:51 β€” πŸ‘ 30663    πŸ” 12721    πŸ’¬ 785    πŸ“Œ 1084

Tbh not all your friends.

09.09.2025 17:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
AAS Journal Author Series: Abril Sahade on 2025ApJ...986L...5S
YouTube video by AAS AAS Journal Author Series: Abril Sahade on 2025ApJ...986L...5S

youtu.be/Vo_da26rWfE
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AAS Journal Author Series: Abril Sahade on 2025ApJ...986L...5S

Abril Sahade (NASA Goddard Space Flight Center) chats about her article on a new form of solar eruptions.

08.09.2025 17:54 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Money isn’t nothing.

05.09.2025 14:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Sorry. That should be Rahmanifard. I thought I corrected the typo in the original, but there it is again.

04.09.2025 14:48 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
AAS Journal Author Series: Fatemeh Rahmanifar and Hafeez Islam on 2025ApJS..279....2R
YouTube video by AAS AAS Journal Author Series: Fatemeh Rahmanifar and Hafeez Islam on 2025ApJS..279....2R

youtu.be/yFPUNuY-MFI
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AAS Journal Author Series: Fatemeh Rahmanifard and Hafeez Islam on 2025ApJS..279....2R

Fatemeh Rahmanifar and Hafijul Islam (University of New Hampshire) chat about their article on the interaction between the interstellar medium and the solar wind over a full solar cycle.

04.09.2025 14:45 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
AAS Journal Author Series: Juan Ignacio Espinoza-Retamal on 2025AJ....170...70E
YouTube video by AAS AAS Journal Author Series: Juan Ignacio Espinoza-Retamal on 2025AJ....170...70E

youtu.be/dtFZVYWeGdA
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AAS Journal Author Series: Juan Ignacio Espinoza-Retamal on 2025AJ....170...70E

Juan Ignacio Espinoza-Retamal (Universidad CatΓ³lica de Chile) chats about his article on exoplanet spin-orbit alignments.

31.08.2025 20:24 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I can't be the only one who thinks that the loss of unitarity in the presence of an event horizon is basically the same problem as wave function collapse. In fact, I think that must be the MWH position.

29.08.2025 16:59 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

There were a group at the top of the escalator at North Farragut saying hi to the morning commuters. Seemed really friendly. I snarled.

29.08.2025 16:36 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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