Andrey Kravtsov
@grumpy1.bsky.social
National Science Foundation significantly downgrades the review process of its proposals...
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www.science.org/content/arti...
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www.science.org/content/arti...
December 18, 2025 at 8:02 PM
National Science Foundation significantly downgrades the review process of its proposals...
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www.science.org/content/arti...
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www.science.org/content/arti...
I disagree with a significant fraction of this article, but still it's an interesting and thought-stimulating read on an issue I've been grappling with...
www.currentaffairs.org/news/ai-is-d...
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www.currentaffairs.org/news/ai-is-d...
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AI is Destroying the University and Learning Itself
Students use AI to write papers, professors use AI to grade them, degrees become meaningless, and tech companies make fortunes. Welcome to the death of higher education.
www.currentaffairs.org
December 2, 2025 at 8:25 PM
I disagree with a significant fraction of this article, but still it's an interesting and thought-stimulating read on an issue I've been grappling with...
www.currentaffairs.org/news/ai-is-d...
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www.currentaffairs.org/news/ai-is-d...
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ESA/Webb picture of the month - image of interacting dwarf galaxies NGC 4490 and NGC 4485. Interaction between these galaxies led to a recent starburst and formation of star clusters.
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esawebb.org/images/potm2...
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esawebb.org/images/potm2...
December 2, 2025 at 8:09 PM
ESA/Webb picture of the month - image of interacting dwarf galaxies NGC 4490 and NGC 4485. Interaction between these galaxies led to a recent starburst and formation of star clusters.
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esawebb.org/images/potm2...
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esawebb.org/images/potm2...
Schrödinger's plates: the plates are simultaneously whole and broken and we won't know their true state until we open the cabinet... )
p.s. This month marks the 90th anniversary of Schrödinger's famous thought experiment involving cat in a chamber.
p.s. This month marks the 90th anniversary of Schrödinger's famous thought experiment involving cat in a chamber.
December 1, 2025 at 5:27 PM
Schrödinger's plates: the plates are simultaneously whole and broken and we won't know their true state until we open the cabinet... )
p.s. This month marks the 90th anniversary of Schrödinger's famous thought experiment involving cat in a chamber.
p.s. This month marks the 90th anniversary of Schrödinger's famous thought experiment involving cat in a chamber.
November 28, 2025 at 7:10 PM
Food for thought/discussion.
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November 13, 2025 at 7:41 PM
Food for thought/discussion.
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Aurora over lake Michigan tonight. In the background are Castor, Pollux, Jupiter, and Procyon.
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November 12, 2025 at 4:34 AM
Aurora over lake Michigan tonight. In the background are Castor, Pollux, Jupiter, and Procyon.
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Reposted by Andrey Kravtsov
![Comic. PERSON 1 with white hat: How tall are you? PERSON 2: 5ft 24cm [caption] When switching to metric, make the process easier by doing it in steps.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreifptvo6h6kdpf75j3i443ospzumiii7a3pblah2urjrawmyymh3ga@jpeg)
November 6, 2025 at 11:33 PM
Reposted by Andrey Kravtsov
Euclid’s “Tuning Fork”
By way of a quick follow-up to yesterday's post, here's another Euclid Q1 product. This one is an updated version of the famous "Tuning Fork" representation of galaxy morphology: Credits: Diagram: ESA/Euclid/Euclid Consortium/NASA, Diagram by J.-C. Cuillandre, L. Quilley, F.…
By way of a quick follow-up to yesterday's post, here's another Euclid Q1 product. This one is an updated version of the famous "Tuning Fork" representation of galaxy morphology: Credits: Diagram: ESA/Euclid/Euclid Consortium/NASA, Diagram by J.-C. Cuillandre, L. Quilley, F.…
Euclid’s “Tuning Fork”
By way of a quick follow-up to yesterday's post, here's another Euclid Q1 product. This one is an updated version of the famous "Tuning Fork" representation of galaxy morphology: Credits: Diagram: ESA/Euclid/Euclid Consortium/NASA, Diagram by J.-C. Cuillandre, L. Quilley, F. Marleau. Images alone: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi You can click on the image to make it (much) bigger.
telescoper.blog
November 7, 2025 at 2:56 PM
Euclid’s “Tuning Fork”
By way of a quick follow-up to yesterday's post, here's another Euclid Q1 product. This one is an updated version of the famous "Tuning Fork" representation of galaxy morphology: Credits: Diagram: ESA/Euclid/Euclid Consortium/NASA, Diagram by J.-C. Cuillandre, L. Quilley, F.…
By way of a quick follow-up to yesterday's post, here's another Euclid Q1 product. This one is an updated version of the famous "Tuning Fork" representation of galaxy morphology: Credits: Diagram: ESA/Euclid/Euclid Consortium/NASA, Diagram by J.-C. Cuillandre, L. Quilley, F.…
(Adler) Planetarium eclipse...
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November 7, 2025 at 6:24 PM
(Adler) Planetarium eclipse...
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"Beyond Hubble": a workshop aimed to trigger cross discussions between observers and theorists on our current understanding on galaxy morphology and kinematics, with an emphasis on revisiting the Hubble Sequence in the modern-day galaxy formation framework.
sites.google.com/cam.ac.uk/be...
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sites.google.com/cam.ac.uk/be...
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October 24, 2025 at 3:40 PM
"Beyond Hubble": a workshop aimed to trigger cross discussions between observers and theorists on our current understanding on galaxy morphology and kinematics, with an emphasis on revisiting the Hubble Sequence in the modern-day galaxy formation framework.
sites.google.com/cam.ac.uk/be...
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sites.google.com/cam.ac.uk/be...
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Reposted by Andrey Kravtsov
Reposted by Andrey Kravtsov
So how much of the £2356 you charge per paper goes to these "essential" peer reviewers?
We have some more quotes from our #MNRAS Scientific Editors for Peer Review Week 2026 @oxfordacademic.bsky.social @royalastrosoc.bsky.social
September 17, 2025 at 10:01 PM
So how much of the £2356 you charge per paper goes to these "essential" peer reviewers?
Reposted by Andrey Kravtsov
August 28, 2025 at 8:00 AM
Reposted by Andrey Kravtsov
a BEAUTIFUL image of spiral galaxy ngc 1068 that uses combined data from hubble, jwst, AND chandra telescopes!!!! 🌌
August 19, 2025 at 11:13 PM
a BEAUTIFUL image of spiral galaxy ngc 1068 that uses combined data from hubble, jwst, AND chandra telescopes!!!! 🌌
I used this from the Opticks in my PhD thesis:
it seems probable to me that God in the Beginning form'd Matter in solid, massy, hard, impenetrable Particles of such Sizes and Figures and with such other Properties and in such Proportion to Space as most conduced to the End for which he form'd them
it seems probable to me that God in the Beginning form'd Matter in solid, massy, hard, impenetrable Particles of such Sizes and Figures and with such other Properties and in such Proportion to Space as most conduced to the End for which he form'd them
August 20, 2025 at 4:42 AM
I used this from the Opticks in my PhD thesis:
it seems probable to me that God in the Beginning form'd Matter in solid, massy, hard, impenetrable Particles of such Sizes and Figures and with such other Properties and in such Proportion to Space as most conduced to the End for which he form'd them
it seems probable to me that God in the Beginning form'd Matter in solid, massy, hard, impenetrable Particles of such Sizes and Figures and with such other Properties and in such Proportion to Space as most conduced to the End for which he form'd them
Reposted by Andrey Kravtsov
Reading a section of Newton's "Opticks", I think he should have enlisted ChatGPT to help him with his spelling.
August 19, 2025 at 9:36 PM
Reading a section of Newton's "Opticks", I think he should have enlisted ChatGPT to help him with his spelling.
A new fantastic image of M82 by JWST NIRCam, showing a biconical outflow of gas and dust from this starbursting galaxy.
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esawebb.org/images/potm2...
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esawebb.org/images/potm2...
June 30, 2025 at 9:20 PM
A new fantastic image of M82 by JWST NIRCam, showing a biconical outflow of gas and dust from this starbursting galaxy.
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esawebb.org/images/potm2...
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esawebb.org/images/potm2...
Reposted by Andrey Kravtsov
I have completed my contributions to this field thank you
Definitely using the novel Ji (@alexji.bsky.social) mass-based dwarf galaxy classification scheme moving forward 🔭
June 24, 2025 at 5:36 PM
I have completed my contributions to this field thank you
Reposted by Andrey Kravtsov
June 24, 2025 at 10:21 AM
Reposted by Andrey Kravtsov
Want to instead explore the Virgo Cluster as captured by Rubin at full resolution? Head to our Skyviewer and enjoy some cosmic joyscrolling! There's so much to explore and discover ✨ #RubinFirstLook #CaptureTheCosmos 🔭🧪
➡️ skyviewer.app
➡️ skyviewer.app
June 23, 2025 at 7:30 PM
Want to instead explore the Virgo Cluster as captured by Rubin at full resolution? Head to our Skyviewer and enjoy some cosmic joyscrolling! There's so much to explore and discover ✨ #RubinFirstLook #CaptureTheCosmos 🔭🧪
➡️ skyviewer.app
➡️ skyviewer.app
Wow, @phdcomics.com in conversation with @xkcd.com talking about the worst place to live in the galaxy?
This might be the nerdiest podcast ever recorded.
Listen to the full episode here: link.podtrac.com/SciStuff_XKCD
This might be the nerdiest podcast ever recorded.
Listen to the full episode here: link.podtrac.com/SciStuff_XKCD
June 5, 2025 at 1:30 PM
Reposted by Andrey Kravtsov
NEW: Astronomers used Hubble to re-examined the prediction that the Milky Way galaxy will eventually collide with the Andromeda galaxy. They find there is only a fifty-fifty chance the two galaxies will smash together within the next 10 billion years: bit.ly/3YzymOx 🔭 🧪
June 2, 2025 at 3:03 PM
NEW: Astronomers used Hubble to re-examined the prediction that the Milky Way galaxy will eventually collide with the Andromeda galaxy. They find there is only a fifty-fifty chance the two galaxies will smash together within the next 10 billion years: bit.ly/3YzymOx 🔭 🧪
