The grand finale! 😁 #pancakes #EPSCDPS2025

John Forbes - ISOs are ejected from their host systems with a range of velocities, spreading out into tidal streams. The Sun is inside million and billions of ISO streams. The streams make enable multiple ISOs for the same star to enter a plenary system (but low probability) #EPSCDPS2025

@chrislintott.bsky.social kicks off the “interstellar objects” session with an interesting discussion of how the orbits can link to potential sources of stellar populations, which gives us us context for their potential chemistry #epscdps2025 #epscdps

Trying to steal a phrase from the exoplanet people: to know the interstellar object population you need to understand the Milky Way: know thy galaxy, know thy ISO.

Have interstellar objects ever hit Earth? No confirmed instances based on fireball statistics but intriguing hints. Dusan Marčeta explores the possibilities with a simulation and it could happen! #epscdps #epscdps2025

At #EPSCDPS2025 I've met @plutokiller.com, who discovered Eris and proposed Planet Nine! I've already interacted with him for my book about missing planets, but it has been a pleasure to meet him by person!

Love a good "looking for a job!" slide at the end of a presentation 😁 (Slightly edited to remove a QR code; contact Marielle directly if you have a job for her :D) #EPSCDPS2025

some interesting results from #JWST in the outer solar system in an absolutely packed room. Who put the session on the biggest, best new space telescope in the smallest room? 😅 #EPSCDPS #EPSCDPS2025.

Colin Orion Chandler talks up the NSF-DOE Rubin Observatory 🔭 potential for comets, which is - of course - amazing #epscdps2025 #epscdps @vrubinobs.bsky.social

Day 4 of #EPSCDPS #EPSCDPS2025. Kicking off with some cool #JWST talks with some #comets stuff tucked into the afternoon session. We are also displaying a poster on the new 💎 #OpenAccess #PlanetaryScience journal #PlanetaryResearch today. I'll be there in Lampio foyer from 18.00

🔭 The Umbra of Earth Image Credit & Copyright: Wang Letian (Eyes at Night) apod.nasa.gov/apod/ap25091...

So I found a neat rock

Silvia Protopapa talks about first JWST methane gas detection on dwarf planet Makemake. Third large KBO body with volatile release (Pluto and Triton - it's a captured dwarf planet orbiting Neptune are the other two). This is either an expanding coma or a bound atmosphere! Wow! #EPSCDPS2025

Fundamentally the #Mars announcement NASA is making today boils down to: there could have been some chemical reactions in these ancient rocks that could have been mediated by living organisms. The word "could" is doing a LOT of heavy lifting there. 🧪

Teddy Kareta talking about P/2023 V6 - it looks like activity shut off sometime in late 2024. See a point source in HST. Wasn’t expect V6 to shut off nor be small. This means that we might be able to see progenitors of Jupiter impactors before they happen with the LSST #EPSCDPS2025

A fun little bit of Tuesday morning making a Solar System keychain at the @europlanetmedia.bsky.social Regional Hubs stall with Thibaut Roger!! 😁☀️🌍🌕🔴🪐☄️ #EPSCDPS2025 (the larger black one in the middle is the asteroid belt, the white one at the end the comet reservoir :D also spot the Moon!)

WOOHOO There is a candidate mission to go to the asteroid Apophis! I'm listening to a press conference from EPSC-DPS in Helsinki where ESA is sharing about their RAMSES Mission to Characterize this asteroid that will not hit earth bit will get really damn close.

Starting #EPSCDPS2025 in style by enjoying a total lunar eclipse in Helsinki 🔴🌕 It was a bit of a wait for it to clear the haze, and I think I might have been the first one in the group to spot its dim glow when it did 😎

Looks like the clouds parted at #EPSCDPS2025 just in time for the #LunarEclipse!

3 things ahout Apophis we have to communicate as science community: 1) Apophis will safely pass the Earth 2) Apophis will safely pass the Earth 3) Apophis will safely pass the Earth Dr. Richard Binzel (MIT) at the Keynote talk in room Jupiter #EPSCDPS2025

Engaged in some light lunar eclipse spotting on the first night of #EPSCDPS2025 🔭

Corporate wants you to spot the difference. #P4A2025

First time memeing for the P4A. Love that nobody will understand other than the people that were watching the stream just now. #P4A2025 www.youtube.com/live/Kq8KDKq...

For those who don’t know, Jonathan is *the* person who keeps track of stuff in space, a key part of the information ecosystem for anyone who studies or writes about satellites. He now needs some help to keep doing this. (1/2)

Busy week in Mayo Dark Sky Park! Thanks @roknezic.bsky.social of Armagh Observatory & Planetarium 🪐 for a great few days of learning in our Pale Blue Dot Planetarium.

This is a really nice article. Wonderful long-form writing and an important point we must keep front of mind: "Space is our shared heritage and ancestor, connecting us through science, storytelling, art, origin stories and cultural traditions" Venkatesan (from article) 🔭

I didn’t know the sky could do that. Just astonishing.

What a night! The 1st time I've seen the #Aurora with unaided eyes: the most awe-inspiring beauty I've ever seen. That swathe of magical flowing colours 🤩 If you missed it, don't despair, tonight might still be special: UK-folk: aurorawatch.lancs.ac.uk World: www.swpc.noaa.gov/products/aur... 🧪🔭

Aurora OVERHEAD and to the SOUTH in Northern Ireland tonight, with bright, vivid colours, the strong stuff lasting for over an hour.... unreal 🤯🤯 I took so many photos that I haven't had time to make a selection yet, so here are some semi-random ones (in reverse chronological order) 🔭🧪

Some images straight off the camera. Incredible evening.

My 17yo daughter has woken up: these from her phone of our #Aurora spectacular trip out! I'm still buzzing from the shear awesomeness of it all. 🔭🧪 Short exposures on a smartphone in Portobello Edinburgh 🏴󠁧󠁢󠁳󠁣󠁴󠁿. For a brief peak in the solar storm, it even looked like this to the unaided eye 🤯

Fun Aurora fact. The reason folks are seeing red/purple Aurora is that the current storm is strong enough that it's pushing deep (<90km) into the atmosphere & interacting with nitrogen. The "regular" green Aurora is due to interaction with higher level oxygen

Incredible. Left Seattle and drove up into the mountains. First picture was taken out of the moon roof of our Subaru while stuck in traffic on the highway.

I don't even have words. That was absolutely unreal, I cried. No edits on this at all, it was naked eye visible.😭💜 Completely overwhelmed and so bloody thankful I got to see this. #Astrophotography #Aurora

Aurora OVERHEAD and to the SOUTH in Northern Ireland tonight, with bright, vivid colours, the strong stuff lasting for over an hour.... unreal 🤯🤯 I took so many photos that I haven't had time to make a selection yet, so here are some semi-random ones (in reverse chronological order) 🔭🧪

Absolutely love how much the Vera Rubin Observatory’s camera just looks like the lens of a giant DSLR 🔭🧪 (Photo from rubinobservatory.org/explore/tech...)

M100: A Grand Design Spiral Galaxy - ©Drew Evans - Photo - HD Photo - About Astronomy Picture Of the Day #astrophotos Maintained by @shinyakato.dev 🔭 READ MORE 🔭

On this day in 1891, Sherlock Holmes fell to his apparent death at the Reichenbach Falls, as depicted in the pages of ‘The Final Problem’.

It’s Wilbur’s birthday today so everyone say happy birthday Wilbur 🙂

Filming something new 👀

I clearly didn't say this loudly enough...

This is irresponsible. Irresponsible science and irresponsible science reporting. 🧪🔭🪐 (apparently the paper isn't even in pre-prints yet, but I can assure you life was not found on K2-18b or any exoplanet yet. Every claim by this group does not hold up to scientific scrutiny)

IC 1795: The Fishhead Nebula - © Roberto Colombari & Mauro Narduzzi - Photo - HD Photo - About Astronomy Picture Of the Day #astrophotos Maintained by @shinyakato.dev 🔭 READ MORE 🔭

Omfg everyone, winter is approaching here so I bought #BalmainMax a snazzy looking jacket that makes him look very smart and like he actively listens to deep conversations, then raises an eyebrow to say “go on” encouraging you to continue telling your story. @darthbluesky.bsky.social this for you!

Wooooaaahhhh! 🔭🧪📸 The new JWST image of a small bit of the Horsehead Nebula is INCREDIBLE. See the image in @sarahkendrew.bsky.social post below. To give you a sense of scale here, here’s an image of the nebula from my backyard. That small white box … that’s the JWST field of view! 🤯🤯🤯

Brief interlude to spend some time gawking at this new #JWST view of the tip of the Horsehead nebula 🧪🔭 This is the near-IR view, of course MIRI took a peek too. Check out the full release & all images on esawebb.org/images/weic2... Credit: ESA/Webb, NASA, CSA, K. Misselt and A. Abergel

Still rescuing photons from crashing into my driveway, this time from the Eagle Nebula. Can never catch enough! 🧪🔭#astrophotography

Happy birthday to Terry Pratchett, who wrote the books so full of humanity and righteous fury at the injustices of the world that he made me a better person the world is poorer for having lost him, but what a legacy he left behind here is a thread I wrote about Discworld, and why it’s so special