Ethan Vishniac 🇺🇦🇨🇦🇺🇸
@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
Orcid 0000-0002-2307-3857
youtu.be/zz3eFAqcsmA
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AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H
Matthew Hopkins (University of Oxford, University of Canterbury) chats about his article on 3I/ATLAS within the context of predicting the properties of the interstellar object population.
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AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H
Matthew Hopkins (University of Oxford, University of Canterbury) chats about his article on 3I/ATLAS within the context of predicting the properties of the interstellar object population.
AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H
YouTube video by AAS
youtu.be
November 19, 2025 at 4:25 PM
youtu.be/zz3eFAqcsmA
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AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H
Matthew Hopkins (University of Oxford, University of Canterbury) chats about his article on 3I/ATLAS within the context of predicting the properties of the interstellar object population.
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AAS Journal Author Series: Matthew Hopkins on 2025ApJ...990L..30H
Matthew Hopkins (University of Oxford, University of Canterbury) chats about his article on 3I/ATLAS within the context of predicting the properties of the interstellar object population.
Having reached an age when I worry about my health way too much, I have been wearing by Apple Watch to bed to keep track of sleep. It informed me that I was getting miniscule amounts of Deep Sleep (tm). I tested this with a Fitbit and there's an enormous discrepancy. I guess this is well known?
November 17, 2025 at 8:40 PM
Having reached an age when I worry about my health way too much, I have been wearing by Apple Watch to bed to keep track of sleep. It informed me that I was getting miniscule amounts of Deep Sleep (tm). I tested this with a Fitbit and there's an enormous discrepancy. I guess this is well known?
youtu.be/z0th9YvNgCo
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AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T
Andy Tzanidakis (University of Washington) chats about his article on stars with irregular and aperiodic luminosity dimming events.
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AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T
Andy Tzanidakis (University of Washington) chats about his article on stars with irregular and aperiodic luminosity dimming events.
AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T
YouTube video by AAS
youtu.be
November 17, 2025 at 12:12 AM
youtu.be/z0th9YvNgCo
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AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T
Andy Tzanidakis (University of Washington) chats about his article on stars with irregular and aperiodic luminosity dimming events.
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AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T
Andy Tzanidakis (University of Washington) chats about his article on stars with irregular and aperiodic luminosity dimming events.
youtu.be/A-PG7HYE3iM
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A Conversation with Scientific Editor Enrico Landi
Enrico Landi chats about his research and role as a Scientific Editor for the AAS Journals.
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A Conversation with Scientific Editor Enrico Landi
Enrico Landi chats about his research and role as a Scientific Editor for the AAS Journals.
A Conversation with Scientific Editor Enrico Landi
YouTube video by AAS
youtu.be
November 11, 2025 at 8:43 PM
youtu.be/A-PG7HYE3iM
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A Conversation with Scientific Editor Enrico Landi
Enrico Landi chats about his research and role as a Scientific Editor for the AAS Journals.
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A Conversation with Scientific Editor Enrico Landi
Enrico Landi chats about his research and role as a Scientific Editor for the AAS Journals.
youtu.be/2z3oNoDtQXU
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AAS Journal Author Series: Matias Castro-Tapia on 2025ApJ...991...64C
Matias Castro-Tapia (McGill University) chats about his article on oxygen-neon phase separation in massive white dwarfs.
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AAS Journal Author Series: Matias Castro-Tapia on 2025ApJ...991...64C
Matias Castro-Tapia (McGill University) chats about his article on oxygen-neon phase separation in massive white dwarfs.
AAS Journal Author Series: Matias Castro-Tapia on 2025ApJ...991...64C
YouTube video by AAS
youtu.be
November 7, 2025 at 4:58 PM
youtu.be/2z3oNoDtQXU
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AAS Journal Author Series: Matias Castro-Tapia on 2025ApJ...991...64C
Matias Castro-Tapia (McGill University) chats about his article on oxygen-neon phase separation in massive white dwarfs.
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AAS Journal Author Series: Matias Castro-Tapia on 2025ApJ...991...64C
Matias Castro-Tapia (McGill University) chats about his article on oxygen-neon phase separation in massive white dwarfs.
This Friday we held a referee training workshop in Bloomington. Here you see all the graduates of our 4 hour session, along with three editors (including me). This was the first time we did one at a university instead of at a science meeting. The next will be in Baltimore, or nearby, in the Spring
November 2, 2025 at 3:21 PM
This Friday we held a referee training workshop in Bloomington. Here you see all the graduates of our 4 hour session, along with three editors (including me). This was the first time we did one at a university instead of at a science meeting. The next will be in Baltimore, or nearby, in the Spring
Reposted by Ethan Vishniac 🇺🇦🇨🇦🇺🇸
youtu.be/aIfkfy0aD1A
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AAS Journal Author Series: Sumi Kim on 2025ApJ...990....4K
Sumi Kim (University of Seoul) chats about her article exploring supernova feedback on the satellites of elliptical galaxies.
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AAS Journal Author Series: Sumi Kim on 2025ApJ...990....4K
Sumi Kim (University of Seoul) chats about her article exploring supernova feedback on the satellites of elliptical galaxies.
AAS Journal Author Series: Sumi Kim on 2025ApJ...990....4K
YouTube video by AAS
youtu.be
October 30, 2025 at 5:52 PM
youtu.be/aIfkfy0aD1A
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AAS Journal Author Series: Sumi Kim on 2025ApJ...990....4K
Sumi Kim (University of Seoul) chats about her article exploring supernova feedback on the satellites of elliptical galaxies.
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AAS Journal Author Series: Sumi Kim on 2025ApJ...990....4K
Sumi Kim (University of Seoul) chats about her article exploring supernova feedback on the satellites of elliptical galaxies.
Reposted by Ethan Vishniac 🇺🇦🇨🇦🇺🇸
#Cosmology
The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
The baseline result is H0=73.50+/-0.81 km/s/Mpc.
by the H0DN Collaboration: Stefano Casertano, et al (incl. @styrofoamplates.bsky.social)
arxiv.org/abs/2510.23823 🧪
The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
The baseline result is H0=73.50+/-0.81 km/s/Mpc.
by the H0DN Collaboration: Stefano Casertano, et al (incl. @styrofoamplates.bsky.social)
arxiv.org/abs/2510.23823 🧪
October 29, 2025 at 1:35 PM
#Cosmology
The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
The baseline result is H0=73.50+/-0.81 km/s/Mpc.
by the H0DN Collaboration: Stefano Casertano, et al (incl. @styrofoamplates.bsky.social)
arxiv.org/abs/2510.23823 🧪
The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision
The baseline result is H0=73.50+/-0.81 km/s/Mpc.
by the H0DN Collaboration: Stefano Casertano, et al (incl. @styrofoamplates.bsky.social)
arxiv.org/abs/2510.23823 🧪
youtu.be/ItZfa9VgYck
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AAS Journal Author Series: Prathamesh Tamhane on 2025ApJ...990...36T
Prathamesh Tamhane (University of Alabama in Huntsville) chats about his article on star formation in M87.
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AAS Journal Author Series: Prathamesh Tamhane on 2025ApJ...990...36T
Prathamesh Tamhane (University of Alabama in Huntsville) chats about his article on star formation in M87.
AAS Journal Author Series: Prathamesh Tamhane on 2025ApJ...990...36T
YouTube video by AAS
youtu.be
October 26, 2025 at 4:32 PM
youtu.be/ItZfa9VgYck
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AAS Journal Author Series: Prathamesh Tamhane on 2025ApJ...990...36T
Prathamesh Tamhane (University of Alabama in Huntsville) chats about his article on star formation in M87.
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AAS Journal Author Series: Prathamesh Tamhane on 2025ApJ...990...36T
Prathamesh Tamhane (University of Alabama in Huntsville) chats about his article on star formation in M87.
Reposted by Ethan Vishniac 🇺🇦🇨🇦🇺🇸
youtu.be/d9ib_G1b1cc
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AAS Journal Author Series: Jiadong Li on 2025ApJS..279...47L
Jiadong Li (Max-Planck-Institut für Astronomie) chats about his article on the hunt for white dwarf - main sequence binaries.
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AAS Journal Author Series: Jiadong Li on 2025ApJS..279...47L
Jiadong Li (Max-Planck-Institut für Astronomie) chats about his article on the hunt for white dwarf - main sequence binaries.
AAS Journal Author Series: Jiadong Li on 2025ApJS..279...47L
YouTube video by AAS
youtu.be
October 23, 2025 at 2:30 PM
youtu.be/d9ib_G1b1cc
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AAS Journal Author Series: Jiadong Li on 2025ApJS..279...47L
Jiadong Li (Max-Planck-Institut für Astronomie) chats about his article on the hunt for white dwarf - main sequence binaries.
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AAS Journal Author Series: Jiadong Li on 2025ApJS..279...47L
Jiadong Li (Max-Planck-Institut für Astronomie) chats about his article on the hunt for white dwarf - main sequence binaries.
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.
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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.
AAS Journal Author Series: Aldana Grichener on 2025ApJS..279...49G
YouTube video by AAS
youtu.be
October 19, 2025 at 8:03 PM
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.
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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.
I know so many authors like this.
xkcd.com/3154/
xkcd.com/3154/
Physics Insight
xkcd.com
October 15, 2025 at 3:34 PM
I know so many authors like this.
xkcd.com/3154/
xkcd.com/3154/
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.
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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.
AAS Journal Author Series: Jirong Mao on 2025ApJ...990...12M
YouTube video by AAS
youtu.be
October 14, 2025 at 3:22 PM
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.
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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.
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.
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.
youtu.be
October 10, 2025 at 2:01 PM
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.
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.
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.🔭
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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.🔭
AAS Journal Author Series: Naila Martinez on 2025RNAAS...9..173P
YouTube video by AAS
youtu.be
October 10, 2025 at 1:50 PM
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.🔭
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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.🔭
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.
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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.
AAS Journal Author Series: Anicia Arredondo on 2025PSJ.....6..195A
YouTube video by AAS
youtu.be
October 8, 2025 at 7:14 PM
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.
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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.
Reposted by Ethan Vishniac 🇺🇦🇨🇦🇺🇸
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.
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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.
AAS Journal Author Series: Ke-Jung (Ken) Chen on 2025ApJ...988L..67C
YouTube video by AAS
youtu.be
September 28, 2025 at 6:50 PM
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.
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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.
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.
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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.
AAS Journal Author Series: Daniel Bamberger on 2025RNAAS...9..174B
YouTube video by AAS
youtu.be
September 24, 2025 at 3:56 PM
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.
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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.
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.
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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.
AAS Journal Author Series: Ruella Ordinaria on 2025RNAAS...9..175O
YouTube video by AAS
youtu.be
September 21, 2025 at 11:24 PM
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.
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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.
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.
September 19, 2025 at 7:01 PM
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.
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.
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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.
AAS Journal Author Series: Richard Zeebe and David Hernandez on 2025AJ....170...71Z
YouTube video by AAS
youtu.be
September 16, 2025 at 2:34 PM
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.
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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.
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.
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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.
AAS Journal Author Series: Steve Howell on 2025ApJ...988L..47H
YouTube video by AAS
youtu.be
September 12, 2025 at 2:06 PM
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.
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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.