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Dr. Nick Attree

@nickattree.eurosky.social
1.5K followers 720 following 1.1K posts

Planetary scientist @iaacsic.bsky.social, working on @esa.int Rosetta & @cometinterceptor.bsky.social (Nucleus WG chair). Prev @TU-Braunschweig.de, @LAM, @QMUL, @physicsuol.bsky.social 🇬🇧🇪🇸🇪🇺 sites.google.com/view/nickattree ORCID: 0000-0003-3344-6693

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Reposted by Dr. Nick Attree
Astronomy Picture of the Day 🪐 @apod.shinyakato.dev · 09/10/2026
🔭 Stickney Crater Credit: HiRISE, MRO, LPL (U. Arizona), NASA ap261009
A color enhanced close-up image of Stickney Crater on Phobos.
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Dr. Nick Attree @nickattree.eurosky.social · 08/10/2026
Yes, I don't like reading on the spot. But I also don't like homework! Would be interesting to try both tho.
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Dr. Nick Attree @nickattree.eurosky.social · 08/10/2026
Very interesting idea. I kinda hate the idea of reading something on a timer with other people during a meeting, but I do like the idea of digesting something written down and then discussing it.
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Dr. Nick Attree @nickattree.eurosky.social · 08/10/2026
in many ways [the pressure] here should be zero, but it should not be zero #ThingsActualScientistsSay
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Dr. Nick Attree @nickattree.eurosky.social · 07/10/2026
Forgot to repost this yesterday, but yes, the attack on Weathertop happens on my birthday!
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Dr. Nick Attree @nickattree.eurosky.social · 07/10/2026
also, when people join the web meeting from inside their labs in the middle of tests!
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Dr. Nick Attree @nickattree.eurosky.social · 07/10/2026
you can tell a spacecraft is getting closer to launch when the ESA project updates actually start getting interesting! 😅
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Reposted by Dr. Nick Attree
Tom Gauld @tomgauld.bsky.social · 06/10/2026
My latest cartoon for @newscientist.com
As we join the great theoretical scientist, he is deep in thought. So still, quiet and focused that he might almost be asleep. But inside that brilliant mind, what new idea is forming? What certainty is being meticulously interrogated? What ingenious theory is ready to change our world forever? (the scientist snores lightly) Ah, it seems he actually is asleep. And that's fine. Science is hard and not every day can be a success. We will come back another time.
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Dr. Nick Attree @nickattree.eurosky.social · 06/10/2026
Well I did not win the Nobel prize on my birthday, but it is astrophysically related so I'll take that as a win! 🌠 bsky.app/profile/nobe...
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Dr. Nick Attree @nickattree.eurosky.social · 06/10/2026
It's my birthday! So naturally Granada's typical beautiful weather has been replaced by thunderstorms and a gigantic downpour! Maybe the weather's actually better in 🇳🇱 where I'm logging in to a @cometinterceptor.bsky.social SWT meeting later? ☄️🛰️
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Dr. Nick Attree @nickattree.eurosky.social · 05/10/2026
Oh my god yes! I am more efficient than I've ever been, ticking multiple things off my to do list every day and yet I'm so deep into so many projects that it still gets longer every day! Feels like more and more work just to stay still
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Dr. Nick Attree @nickattree.eurosky.social · 05/10/2026
"In addition to the General Conditions of Participation... proposals need to: ... Not violate fundamental laws of physics ..." No perpetual motion machines? You got it boss!
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Dr. Nick Attree @nickattree.eurosky.social · 05/10/2026
I don't think my drawing is that good! But I'll settle for somewhere in the solar system 😉
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Dr. Nick Attree @nickattree.eurosky.social · 05/10/2026
Some impressive artwork here. Gonna have to up our game for my next ISSI Team! 🙂
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Dr. Nick Attree @nickattree.eurosky.social · 03/10/2026
Yeah, I really enjoyed reading Dracula, but found Frankenstein obtuse and repetitive so that tracks 😅 the non linear storytelling through letters and stuff in Dracula tho, I though was very modern and interesting
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Reposted by Dr. Nick Attree
Simeon Schmauß @stim3on.bsky.social · 01/10/2026
I hinted that there would be more images from the Juice flyby, so here is the timelapse of the full event! It's always amazing to get these views of our fragile Blue Marble from the spacecraft we send out to explore the solar system! 🔭🧪 #planetsci
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Dr. Nick Attree @nickattree.eurosky.social · 29/09/2026
On my birthday! A good omen? 🤞
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Reposted by Dr. Nick Attree
ESA Space Science @science.esa.int · 28/09/2026
A successful Earth flyby improves Juice’s course to Jupiter Earlier today, Juice flew just 8640 km above the Indian Ocean and snapped these images with its onboard monitoring cameras. 1️⃣Africa, by Juice monitoring camera 2️⃣Madagascar, by Juice NavCam 3️⃣Moon, by Juice NavCam 🔭 🧪 #planetsci
Mostly black space, most of Earth visible at the top right of the image. Part of a spacecraft visible on the left.Part of the island of Madagascar in black and white.A crescent Moon, with about a quarter of the Moon showing. Many craters are visible.
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Dr. Nick Attree @nickattree.eurosky.social · 28/09/2026
a collaborator told me about a useful statistical measure and I went to look it up on wikipedia to find it was "prompted by the problem of identifying the similarities of skulls based on measurements"... oh...umm... right...!
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Dr. Nick Attree @nickattree.eurosky.social · 25/09/2026
I don't think it matters... but my funding agency does! Approximately how long did it take/how difficult was it to get that ranking? Thinking of @coop.planetary-research.org ...
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Dr. Nick Attree @nickattree.eurosky.social · 23/09/2026
Clearly a true Dutchmam only eats grilled cheese sandwiches and bitterballen
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Dr. Nick Attree @nickattree.eurosky.social · 23/09/2026
Enjoyed your take on #EPSC2026 Chris! I had exactly the same experience at the bistro. Ordered the pea soup and ended up scoffing down something else in 5 mins, but on a different day! Dunno why they leave it on the menu when it clearly doesn't exist 😅
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Dr. Nick Attree @nickattree.eurosky.social · 23/09/2026
Fascinating thread on comparative planetology for rocky #planets, the results of an interesting sounding @issibern.ch meeting!
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Dr. Nick Attree @nickattree.eurosky.social · 22/09/2026
Yay (old) Hampshire! Also, New Zealand is biiiiig! Also, New Jersey... huh! Never thought about that
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Reposted by Dr. Nick Attree
Jasmine 🌌🔭 @astrojaz.bsky.social · 16/09/2026
these are cliffs on a comet that we landed a spacecraft on btw
Black-and-white view from the surface of a comet, showing rugged, dusty terrain in the foreground and a massive dark cliff-like wall rising across the upper half of the image. Bright, sunlit ridges and rocks contrast sharply with deep shadows.High-contrast black-and-white view of a comet’s rugged surface, with a towering, steep cliff on the right and a narrow, shadowed valley below. Jagged rock formations and scattered debris are illuminated against the blackness of space.
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Dr. Nick Attree @nickattree.eurosky.social · 19/09/2026
Last night I literally spent 10 mins looking for my glasses and my wife said I should get smart glasses just for that 😂
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Dr. Nick Attree @nickattree.eurosky.social · 18/09/2026
hear hear!
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Dr. Nick Attree @nickattree.eurosky.social · 17/09/2026
"Slurm keeps killing my children" #ThingsActualScientistsSay
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Dr. Nick Attree @nickattree.eurosky.social · 16/09/2026
#Earthquake! Well I missed the big ones here in #Granada over summer, but I've definitely felt one now!
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Dr. Nick Attree @nickattree.eurosky.social · 11/09/2026
#stroopwafel! To round out @europlanetmedia.bsky.social #EPSC
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Dr. Nick Attree @nickattree.eurosky.social · 10/09/2026
Made it to #Pluto and was almost eaten by seagulls! Walking the #planet tour all the way from the Sun at the #EPSC2026 conference venue out to #Scheveningen beach in my afternoon off.
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Dr. Nick Attree @nickattree.eurosky.social · 10/09/2026
Talk done. Some good questions, and that concludes my contributions to #EPSC2026, after 2 talks and a session chairing! Phew, now I can relax and enjoy the rest of the conference 😅
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Dr. Nick Attree @nickattree.eurosky.social · 10/09/2026
Comets be crazy...
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Dr. Nick Attree @nickattree.eurosky.social · 10/09/2026
In the Sun room this morning for active bodies session, including my talk on coupling #comet ☄️ activity and surfaces through modelling. The biggest room in the whole #EPSC2026, but the morning after conference social...so looking rather empty at 8.30 in the morning 😅
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Dr. Nick Attree @nickattree.eurosky.social · 09/09/2026
Closing out the day with Michael talking about @vrubinobs.bsky.social finding targets for @cometinterceptor.bsky.social. Sporting a nice Comet Interceptor t-shirt! I need to get me one of those :) #EPSC2026
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Dr. Nick Attree @nickattree.eurosky.social · 09/09/2026
"they were in orbit around the moon, so they're basically at earth" #ThingsActualScientistsSay #EPSC2026
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Dr. Nick Attree @nickattree.eurosky.social · 09/09/2026
Busy small bodies day all in room Earth at #EPSC2026 today. First interstellar objects, then I'll be chairing a session of our SB5, computational and experimental astrophysics of small bodies. Finally, science with @vrubinobs.bsky.social later this afternoon!
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Dr. Nick Attree @nickattree.eurosky.social · 08/09/2026
Glorious, as ever
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Dr. Nick Attree @nickattree.eurosky.social · 08/09/2026
Ah great! It would be great to catch up! See you in the comets session? Or around at coffee or posters
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Dr. Nick Attree @nickattree.eurosky.social · 08/09/2026
After a crazy first day at #EPSC2026, day 2 slows down a bit for my schedule. Thought to take advantage of that with a bit of sightseeing, but of course the weather is looking a bit.. Dutch... ah well, I guess I will use fhe time to work on my proposal, and drop in to a few #Enceladus talks
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Dr. Nick Attree @nickattree.eurosky.social · 07/09/2026
Thanks! Are you here? Or are you attending online?
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Dr. Nick Attree @nickattree.eurosky.social · 07/09/2026
bsky.app/profile/nick... Talk done. Went a little bit long and was wrapped up quickly by the chair, whose own talk was next! 😅 Also this nice paper on Saturn's moon Pan and it's shape was presented #EPSC2026
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Dr. Nick Attree @nickattree.eurosky.social · 07/09/2026
Heading to Earth to talk about #comets! Presenting some analysis of the uncertainty in the trajectories of incoming @cometinterceptor.bsky.social targets, based on some work by Pieter de Boer who did a Masters internship with me in Granada #EPSC2026
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Dr. Nick Attree @nickattree.eurosky.social · 07/09/2026
Hello @europlanetmedia.bsky.social #EPSC2026 here in Den Haag! Looking forward the #3I/Atlas keynote today, plus I will be presenting some @cometinterceptor.bsky.social related-work in the small body dynamics session SB12 later, and I also have another talk Thurs. Gonna be a busy week! #PlanetSci
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Dr. Nick Attree @nickattree.eurosky.social · 06/09/2026
Arrived in Beijing... I mean The Hague! Yeah my hotel is in Chinatown 😅 #DenHaag 🇳🇱
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Dr. Nick Attree @nickattree.eurosky.social · 06/09/2026
So jealous of that trip that you can take the train! :)
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Dr. Nick Attree @nickattree.eurosky.social · 06/09/2026
On my way to the #Netherlands 🇳🇱 for @europlanetmedia.bsky.social #EPSC2026! In true scientist fashion, I am working on two different proposals at #Malaga airport. Does this mean I've Made It as a researcher?! 😅 (Only the outcome of the proposals will tell!)
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Dr. Nick Attree @nickattree.eurosky.social · 04/09/2026
Also this is cool, on how Pan got its equatorial ridge arxiv.org/pdf/2609.03060 (yes, I'm catching up on the Arxiv for the first time in a while!)
arxiv.org
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Dr. Nick Attree @nickattree.eurosky.social · 04/09/2026
where to look for "submoons" ("moonmoons" is funnier 😛) arxiv.org/abs/2609.03564 "Iapetus, Titan, Rhea, Phoebe, Callisto, and Ganymede are the most dynamically favorable submoon hosts"
arxiv.org
Dynamically favorable hosts for submoons around Jupiter and Saturn
The long-term stability of small bodies orbiting natural satellites (submoons) in the Solar System has been previously investigated using an analytical approximation of a three-body problem, focusing ...
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Dr. Nick Attree @nickattree.eurosky.social · 03/09/2026
This is like the ship from Futurama right? Instead of moving itself it moves the entire universe in the opposite direction 😅
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