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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · 13d

Fingers crossed!!

Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Robert “The Bobby Yaga” McNees @mcnees.bsky.social · 13d

If there is one physics formula everyone knows, it's E=mc².

Einstein proposed the famous equivalence between energy and mass in his second special relativity manuscript. It was received by Annalen der Physik #OTD in 1905, the day after they published his first special relativity paper. 🧪 ⚛️

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · 15d

I know it's this year, I know Harvard is commemorating her in some ways - and we put together a special display on her this summer here in Armagh, too (Northern Ireland - one of our directors was studying at Harvard while she was still working there) 🙂

Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Elise Cutts @elisecutts.bsky.social · 17d

Cecilia Payne-Gaposchkin ✨ figured out what stars are made of ✨ when she was just 25. 🔭🧪

Her PhD thesis basically established the Harvard astro department — at a time when Harvard didn't officially allow woman students.

I wrote this little profile to mark the 100th anniversary of her thesis:

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · 29d

The grand finale! 😁
#pancakes #EPSCDPS2025

A lot of people crowding around pancakes (crepes) being served

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · 29d

Adding to the collection of job-searching slides :D

(Again, slightly edited to remove some contact information)
#EPSCDPS2025

Photo of a conference room with the speaker at the podium on the right and a slide projected on a screen on the left. The slide caption reads: "Thank you! Kiitos!" ("Thank you" in Finnish, where the conference is taking place). On the right is a multicoloured meteor with a smiley face, on the left text reading: "Currently looking for a job!" The image has been slightly edited to remove contact information.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Meg Schwamb @megschwamb.bsky.social · 29d

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

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Heidi B. Hammel @hbhammel.bsky.social · 29d

@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

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Chris Lintott @chrislintott.bsky.social · 29d

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.

Meg Schwamb @megschwamb.bsky.social · 29d

Chris Lintott (@chrislintott.bsky.social) talking about the Ōtautahi-Oxford model - "know thy galaxy, know thy ISO" - ISOs outlive their parent stars, so we need the sine morte stellar population. #EPSCDPS2025

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Heidi B. Hammel @hbhammel.bsky.social · 29d

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

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Luca Nardi @lucanardi.bsky.social · 29d

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!

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · Sep 11

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

Photo of a packed conference room with the speaker at the podium on the left and a slide projected on a screen on the right. The left half of the screen features a meme with a photo of Yoda with bold text overlay that reads: "A NEW JOB I NEED" across two lines in all caps. The image has been slightly edited to remove some personal information.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Dr. Nick Attree @nickattree.bsky.social · Sep 11

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.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Meg Schwamb @megschwamb.bsky.social · Sep 11

#EPSCDPS2025

Heidi B. Hammel @hbhammel.bsky.social · Sep 11

Mike Kelley describes spectra of the icy surface of comet Hale-Bopp, taken at a distance of 46 AU (!!) with JWST 🔭 : similar to Water-type TNOs but with organic features

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Heidi B. Hammel @hbhammel.bsky.social · Sep 10

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

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Dr. Nick Attree @nickattree.bsky.social · Sep 11

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

A white and blue poster with text and the title planetary research.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Astronomy Picture of the Day 🪐 @apod.shinyakato.dev · Sep 11

🔭 The Umbra of Earth

Image Credit & Copyright: Wang Letian (Eyes at Night)

apod.nasa.gov/apod/ap25091...

The dark, inner shadow of planet Earth is called the umbra. Shaped like a cone extending into space, it has a circular cross section most easily seen during a lunar eclipse. And on the night of September 7/8 the Full Moon passed near the center of Earth's umbral cone, entertaining eclipse watchers around much of our fair planet, including parts of Antarctica, Australia, Asia, Europe, and Africa. Recorded from Zhangjiakou City, China, this timelapse composite image uses successive pictures from the total lunar eclipse, progressing left to right, to reveal the curved cross-section of the umbral shadow sliding across the Moon. Sunlight scattered by the atmosphere into Earth's umbra causes the lunar surface to appear reddened during totality. But close to the umbra's edge, the limb of the eclipsed Moon shows a distinct blue hue. The blue eclipsed moonlight originates as rays of sunlight pass through layers high in the upper stratosphere, colored by ozone that scatters red light and transmits blue. In the total phase of this leisurely lunar eclipse, the Moon was completely within the Earth's umbra for about 83 minutes.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Percy the Mars Rover @percyrover.bsky.social · Sep 10

So I found a neat rock

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Meg Schwamb @megschwamb.bsky.social · Sep 10

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

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Alexandra Witze @alexwitze.bsky.social · Sep 10

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. 🧪

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Meg Schwamb @megschwamb.bsky.social · Sep 9

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

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · Sep 9

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!)

Photo of a conference lanyard with a few pins, a large name badge, and a keychain string of beads attached to it

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Dr Pamela L Gay @starstryder.space · Sep 8

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.

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Dr Rok Nežič 🇸🇮🇬🇧 @roknezic.bsky.social · Sep 8

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 😎

A night-time panorama across a lake or bay in Helsinki, showing buildings and trees on the opposite shore and reflected in the water. In the left third, in the sky, is a fully eclipsed Moon, deep red in colour. The eclipsed Moon is also visibly reflected in the water.

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Reposted by Dr Rok Nežič 🇸🇮🇬🇧

Diana Hayes 🇨🇦 @conorwhayes.bsky.social · Sep 7

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

A nighttime shot of a city skyline. The Moon appears low in the sky and is in full eclipse, all red, brighter at the bottom left and darker towards the upper right.

The same cityscape photo, but zoomed in closer on the Moon. The dark and light regions of the lunar surface are just about visible.

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