John Stott
@jpsastro.bsky.social
Astrophysicist at Lancaster University. Mainly galaxy evolution, environment and feedback. Recent foray into machine learning and icebergs.
🔭🧪😃
Well that’s a first. My only mildly sarcastic answer to a question about how we know 3I/ATLAS is a comet made it onto Have I Got News For You.
😂😂😂
😂😂😂
November 7, 2025 at 10:01 PM
🔭🧪😃
Reposted by John Stott
After squandering millions on Castle Meadows purchase, University of Nottingham is now axing modern languages & music
It also plans to cut its nursing programme
Leaders of the bungleocracy continue to draw handsome salaries
www.bbc.co.uk/news/article...
It also plans to cut its nursing programme
Leaders of the bungleocracy continue to draw handsome salaries
www.bbc.co.uk/news/article...
Music and modern languages courses suspended at University of Nottingham
In a statement the institution also says it is
www.bbc.co.uk
November 7, 2025 at 8:37 AM
After squandering millions on Castle Meadows purchase, University of Nottingham is now axing modern languages & music
It also plans to cut its nursing programme
Leaders of the bungleocracy continue to draw handsome salaries
www.bbc.co.uk/news/article...
It also plans to cut its nursing programme
Leaders of the bungleocracy continue to draw handsome salaries
www.bbc.co.uk/news/article...
🧪🔭
Quick update video on the real science (plus some hopefully not ill-informed speculation) of 3I/ATLAS around it's closest approach to the Sun.
Rapid brightening! Changing colour? non-gravitational acceleration! It is Aliens yet?
No. But it's still cool.
youtu.be/oX8vBXhFQ5o
Rapid brightening! Changing colour? non-gravitational acceleration! It is Aliens yet?
No. But it's still cool.
youtu.be/oX8vBXhFQ5o
All The Latest Real Science on 3I/ATLAS
YouTube video by Mark Norris
youtu.be
November 4, 2025 at 7:11 AM
🧪🔭
There are currently no permanent academic positions for astrophysics in the UK 🔭🧪 #academicsky
November 3, 2025 at 10:43 AM
There are currently no permanent academic positions for astrophysics in the UK 🔭🧪 #academicsky
Reposted by John Stott
I never thought it was but, okay
November 2, 2025 at 11:45 AM
I never thought it was but, okay
These are galaxy colour magnitude diagrams from a different article surely? 🧪🔭
I think this paper about the relationship between screen time and ADHD (and related brain structure) is very interesting... but at the same time, I'm looking at the plots and grind my teeth.
These are really terrible correlations (and possibly data biases). 🧪
Link: www.nature.com/articles/s41...
These are really terrible correlations (and possibly data biases). 🧪
Link: www.nature.com/articles/s41...
November 2, 2025 at 8:12 AM
These are galaxy colour magnitude diagrams from a different article surely? 🧪🔭
As it's Halloween here's a bit of Type O with black No. 1 🤘🎃 www.youtube.com/watch?v=vFwY...
Type O Negative - Black No. 1 (Little Miss Scare -All) [HD Remaster] [OFFICIAL VIDEO]
YouTube video by Roadrunner Records
www.youtube.com
October 31, 2025 at 10:23 AM
As it's Halloween here's a bit of Type O with black No. 1 🤘🎃 www.youtube.com/watch?v=vFwY...
🔭🧪
Our interstellar comet has reappeared from behind the Sun! (I note there’s no sign of it having fired any engines while hidden from us….)
Comet 3I Atlas is back in the field of view of the PUNCH WFI instruments. Here is co-added stack of all of the images from the clear filter (centered around 550nm) from October 27th.
October 30, 2025 at 8:06 AM
🔭🧪
🧪🔭
I made a (relatively) short video looking at the 8 reasons Avi Loeb thinks 3I/ATLAS has a 40% chance of being aliens.
I’m not impressed.
youtu.be/y-oQ44pQdCU?...
I’m not impressed.
youtu.be/y-oQ44pQdCU?...
3I/ATLAS: Does it Really Have 40% Chance It's Alien?
YouTube video by Mark Norris
youtu.be
October 29, 2025 at 4:11 PM
🧪🔭
Reposted by John Stott
Welcome to our Open Day 👋
Unfortunately, due to the clocks change, our ANPR cameras have fined all Open Day guests who have parked in our car parks between 8-9am. The fines cannot be cancelled, but 5% will go back into improving the student experience.
Unfortunately, due to the clocks change, our ANPR cameras have fined all Open Day guests who have parked in our car parks between 8-9am. The fines cannot be cancelled, but 5% will go back into improving the student experience.
October 26, 2025 at 12:35 PM
Welcome to our Open Day 👋
Unfortunately, due to the clocks change, our ANPR cameras have fined all Open Day guests who have parked in our car parks between 8-9am. The fines cannot be cancelled, but 5% will go back into improving the student experience.
Unfortunately, due to the clocks change, our ANPR cameras have fined all Open Day guests who have parked in our car parks between 8-9am. The fines cannot be cancelled, but 5% will go back into improving the student experience.
Best quote referring to the comet going behind the Sun “Was this hideout planned as an opportune time for technological action?”… No 🔭🧪
Loeb latest: “If 3I/ATLAS is a massive mothership, it will likely continue along its original gravitational path and ultimately exit the Solar system.”
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
The Imminent Solar Conjunction of 3I/ATLAS
On October 21, 2025, the interstellar object 3I/ATLAS will be exactly on the opposite side of the Sun relative to Earth, constituting a…
avi-loeb.medium.com
October 24, 2025 at 12:02 PM
Best quote referring to the comet going behind the Sun “Was this hideout planned as an opportune time for technological action?”… No 🔭🧪
Reposted by John Stott
Loeb latest: “If 3I/ATLAS is a massive mothership, it will likely continue along its original gravitational path and ultimately exit the Solar system.”
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
The Imminent Solar Conjunction of 3I/ATLAS
On October 21, 2025, the interstellar object 3I/ATLAS will be exactly on the opposite side of the Sun relative to Earth, constituting a…
avi-loeb.medium.com
October 24, 2025 at 10:35 AM
Loeb latest: “If 3I/ATLAS is a massive mothership, it will likely continue along its original gravitational path and ultimately exit the Solar system.”
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
Getting his excuses in early. Even if moves like a comet and leaves the solar system it’s still aliens.
🤦♂️
avi-loeb.medium.com/the-imminent...
🧪🔭
Irritated by all the publicity hungry nonsense about 3I/ATLAS and aliens I made a video describing what we actually know about this unusual tourist from deep space and deep time that is racing through our solar system.
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
It Came From Deep Space! - 3I/ATLAS in the first 100 days
YouTube video by Mark Norris
youtu.be
October 23, 2025 at 6:49 PM
🧪🔭
Reposted by John Stott
Irritated by all the publicity hungry nonsense about 3I/ATLAS and aliens I made a video describing what we actually know about this unusual tourist from deep space and deep time that is racing through our solar system.
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
It Came From Deep Space! - 3I/ATLAS in the first 100 days
YouTube video by Mark Norris
youtu.be
October 23, 2025 at 12:38 PM
Irritated by all the publicity hungry nonsense about 3I/ATLAS and aliens I made a video describing what we actually know about this unusual tourist from deep space and deep time that is racing through our solar system.
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
Spoiler: it's a comet, a cool one, but still a comet.
youtu.be/clrp8aW4RJk?...
Reposted by John Stott
🤩The @4most-eu.bsky.social (#4MOST) facility on @eso.org VISTA telescope in Chile achieved first light.
#MPE scientists played a leading role in developing the Operations System, enabling to link #eROSITA’s X-ray universe with large-scale structure of galaxies.
➡️ More: www.mpe.mpg.de/8102833/news...
#MPE scientists played a leading role in developing the Operations System, enabling to link #eROSITA’s X-ray universe with large-scale structure of galaxies.
➡️ More: www.mpe.mpg.de/8102833/news...
4MOST Begins its Journey of Cosmic Discovery
4MOST embarks on a cosmic journey, capturing spectra of thousands of celestial objects simultaneously, unlocking secrets of the universe.
www.mpe.mpg.de
October 21, 2025 at 12:01 PM
🤩The @4most-eu.bsky.social (#4MOST) facility on @eso.org VISTA telescope in Chile achieved first light.
#MPE scientists played a leading role in developing the Operations System, enabling to link #eROSITA’s X-ray universe with large-scale structure of galaxies.
➡️ More: www.mpe.mpg.de/8102833/news...
#MPE scientists played a leading role in developing the Operations System, enabling to link #eROSITA’s X-ray universe with large-scale structure of galaxies.
➡️ More: www.mpe.mpg.de/8102833/news...
I guess there was also after this happened...
October 21, 2025 at 12:38 PM
I guess there was also after this happened...
Reposted by John Stott
🚨 While Amazon Web Services crumbled, our state-of-the-art GeoCities-powered learning environment stood strong
October 20, 2025 at 6:20 PM
🚨 While Amazon Web Services crumbled, our state-of-the-art GeoCities-powered learning environment stood strong
Reposted by John Stott
With the AWS outage, now‘s as good a time as any to post this old strip.
October 20, 2025 at 10:18 AM
With the AWS outage, now‘s as good a time as any to post this old strip.
Reposted by John Stott
You probably missed it because of some deadline but on Tuesday we published the results of an [OIII] emitters search in the COMOS(-3D) field using slitlless spectroscopy. That's *237* 6.7<z<9 uniformly-selected spec-z galaxies over 0.3 degrees square. See the piled 2D plots below, that's a lot!
October 17, 2025 at 2:41 PM
You have got to be kidding me 🧪 #academicsky
October 17, 2025 at 12:52 PM
You have got to be kidding me 🧪 #academicsky
Voting intention for the UK. Now while I realise the worst part of this graph is the party in the lead, I can't get over Yougov using a full 0-100% y axis, when biggest party is on 30%. 🧪 #academicsky
October 17, 2025 at 10:01 AM
Voting intention for the UK. Now while I realise the worst part of this graph is the party in the lead, I can't get over Yougov using a full 0-100% y axis, when biggest party is on 30%. 🧪 #academicsky
🧪🔭 #cosmology
Cosmologists! We have a faculty job going here in Oxford - happy to answer questions. Brief version is that this remains a great & collaborative place to do science and the students are superb. 🔭 www.jobs.ac.uk/job/DOP628/a...
Associate Professor of Cosmology at University of Oxford
Recruiting now: Associate Professor of Cosmology on jobs.ac.uk. Click for details and explore more academic job opportunities on the top job board
www.jobs.ac.uk
October 14, 2025 at 9:29 AM
🧪🔭 #cosmology
In this galaxy cluster merger the galaxies are located in the red shaded regions with the majority of the mass. The pink region in the middle is where the gas lies. This proves the existence of a missing dark matter 😉🧪🔭 #extragalactic #cosmology
October 10, 2025 at 3:56 PM
In this galaxy cluster merger the galaxies are located in the red shaded regions with the majority of the mass. The pink region in the middle is where the gas lies. This proves the existence of a missing dark matter 😉🧪🔭 #extragalactic #cosmology
Our JELS paper on galaxy sizes (stellar and Halpha) and merger rates at z=6 using NB JWST data has now been accepted for publication. Congratulations @hmostevo.bsky.social 🧪🔭 #extragalactic #academicsky
Hello everyone! My first Bluesky posts!
I am very pleased to share that my 3rd first-author paper of my PhD is now available on arXiv! The paper has also been submitted to MNRAS following minor suggested revisions from the anonymous referee!
arxiv.org/abs/2509.08045
Thread on the details 🧵
I am very pleased to share that my 3rd first-author paper of my PhD is now available on arXiv! The paper has also been submitted to MNRAS following minor suggested revisions from the anonymous referee!
arxiv.org/abs/2509.08045
Thread on the details 🧵
The \emph{JWST} Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization
We used observations from the \emph{JWST} Emission Line Survey (JELS) to measure the half-light radii ($r_{e}$) of 23 H$α$-emitting star-forming (SF) galaxies at $z=6.1$ in the PRIMER/COSMOS field. Ga...
arxiv.org
October 10, 2025 at 9:39 AM
Our JELS paper on galaxy sizes (stellar and Halpha) and merger rates at z=6 using NB JWST data has now been accepted for publication. Congratulations @hmostevo.bsky.social 🧪🔭 #extragalactic #academicsky