Dr. Caitlin Ahrens

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'Challenging the standard cosmological mode' in Philosophical Transactions A is now one of @royalsocietypublishing.org's most highly cited and widely read issues. 👏

It was edited by 2025 @royalastrosoc.bsky.social Gold Medal winner James Binney, Roya Mohayee, John Peacock and Subir Sarkar.

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Excellent informative thread from Andy🔭 🧪

Open position: Scientific Editor for The Planetary Science Journal

Note that this is a paid position via a stipend.

As a current PSJ editor, I’d be happy to answer questions.

aas.org/jobregister/...

It’s a quackademic committee meeting 🪿

MIND BLOWN. Ugh I love thinking about geologic time. I literally switched my major at the last minute in college because of it. Such an odd duck I am, looking always for other odd ducks in the universe, and so happy when I find them.

Moss survived in space for nine months, study finds The moss was attached to the International Space Station, fully exposed to the harsh environment of the cosmos. Not only did the spores endure, they could still reproduce after returning to Earth.

For nine months in 2022, moss lived in space.

This artist's impression shows a concept for a future ocean world explorer.

The impact of such a mission could be enormous for Europe & beyond.

The mission would boost European competences in many scientific & technological fields, including in-orbit assembly, operating in extreme environments, landing technologies, and novel scientific instrumentation.

4/ #CM25 🔭

Fantastic deëxtinction fiction vs #DeExtinction facts 🧪🐺🦤🦣

We at the #AGU conference need to be careful yet become a safe haven for scientists

Dust in the Wind: A New Tool for Understanding Galactic Outflows The galaxy M82 is host to an extended multiphase wind driven by star formation. Today's paper attempts to use JWST observations of dust in the wind to understand the structure of its cooler gas.

Great
@astrobites.bsky.social article by @skylargrayson.bsky.social
on OSU astronomy PhD student Sebastian Lopez's paper showing how PAHs (polycyclic aromatric hydrocarbons) follow cold gas in the outflows of M82, with a great classic rock-inspired title! 🔭 astrobites.org/2025/11/20/m...

ESA’s Argonaut press conference

Interesting and useful press conf today by ESA and its industry partners building the Argonaut lunar lander. 1500 kg to the lunar surface. Launched by Ariane 6. Targeting 2030 for 1st mission but needs approval by Ministerial mtg next wk. www.esa.int/ESA_Multimed...

The M-02J is a jet-powered experimental glider from the OpenSky Project, inspired by Nausicaä of the Valley of the Wind. #anime #tech #innovation

The Moon that Could Support Life: What Cassini Discovered Beneath the Ice of Enceladus Join host Beth Johnson for a fascinating episode of SETI Live, featuring planetary scientists Dr Georgina Miles and Dr Carly Howett from the University of Ox...

WATCH LIVE: youtube.com/live/fDf0VQ_...

The Future of Discovery: Science News Spotlights Five Scientists to Watch Science News, published by Society for Science, highlights early-to-mid-career researchers working on some of today’s biggest challenges in a profile

Selected from a pool of more than 60 nominees recommended by Nobel Laureates and recently elected members of the National Academy of Sciences, these early-to-mid-career researchers are the future of discovery. www.societyforscience.org/blog/2025-sc...

We have a PhD opportunity at the University of Reading focused on analysing Jupiter and Saturn auroral observations!

Title: Investigating Earth-like responses to the Solar Wind in Gas Giant Upper Atmospheres

Supervisor: me!

Full description/application portal:
www.findaphd.com/phds/project...

Funny that this reminds me of Twain’s “Cannibalism in the Cars”, which if you haven’t read it yet- I highly recommend this short story!

A display of cheeses. Two in the front are vaguely torus shaped, sliced in half so you can see the shape, like a bagel cut in half to make two u-shapes. They look like drawings of the disk of matter around a black hole, narrow in the middle and flared on the outside.

For the astronomers: I found an accretion disk diagram cheese. A quesar.

4/n - In our volume2, issue 2, editorial @fabiocrameri.ch and @drlperezdiaz.bsky.social wrote about the "Role of Science Visuals in Geoscience" 👇 ⚒️

tektonika.online/index.php/ho...

Promotional graphic for the Bell Burnell Graduate Scholarship Fund Q&A Panel webinar, scheduled for 8 December from 12pm to 1pm. Features the logo of the Institute of Physics and an image of Jocelyn Bell Burnell smiling while at an event.

Thinking of applying for the Bell Burnell Graduate Scholarship Fund? Have questions? Come along to a live Q&A webinar with panel members to learn more about the fund’s mission, and gain insight and guidance on the application process.

📆 8 December 12pm-1pm
🔗 Register here: https://bit.ly/4oRNGRI

We @opensciencenl.bsky.social proudly present the new work programme for 2026–2027. 13 funding instruments to strengthen #openscience in the Netherlands.
Structured around 5 themes:
🔹infrastructure
🔹capacity
🔹communities
🔹incentives
🔹monitoring

www.openscience.nl/en/news/work...

Four dust shells in Wolf-Rayet Apep expand away from three central stars that appear as a single pinpoint of light. The shells are curved, and the interior shell looks like a backward lowercase e shape.

Webb has revealed for the first time that there are four shells of dust around this pair of Wolf-Rayet stars, which are known as Apep.

Read more 👉 https://esawebb.org/images/wolf-rayet-apep/
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Agree #coding

NASA Mars Perseverance Rover at Jezero crater
Sol 1629 (19th September, 2025)

Subject "Phippsaksla," now revealed to be high in iron and nickel - suggesting it may have formed elsewhere in the solar system

ZCAM09712
Site 79 / 488
📷 Credits: NASA / JPL-Caltech / ASU / MSSS / Martian-Observer

Two giant anteaters - one male and one female - eat fruits, eggs, and chow from a dish inside a zoo dayroom habitat.

Happy World Anteater Day to Gloria and McCauley!

Giant anteaters, like Zoo Boise's couple, are able to flick their two-foot-long tongues in and out 150 times per minute.

📷: Zookeeper Elsa

For anyone wondering why the HiRISE image of 3I/ATLAS only had an exposure time of a few seconds:

HiRISE uses a pushbroom imager with fast readout to avoid blurring images of Mars. To make this image, MRO had to be rolled around in a very unusual sequence.

For more details: www.uahirise.org/specs/

Today in Days I Did Not Know Today Was: International Men's Day. I appreciate you, my dudes.

Remember that lovely aurora last week?

Well...um...this is what Euclid saw... 😱

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Sign on a library book drop sign requesting people to yell "NOT A SQUIRREL" to confirm they are human and not a squirrel trying to steal Keith's lunch.

squirrel: *points gun*
me: what do you want me to do?
squirrel: *gestures at sign*
me: alright, i get it *opens book drop*
squirrel: *makes hurry-up motion*
me: NOT A SQUIRREL!
squirrel: *disappears into book drop*
me: *whispers* forgive me, keith

💛🧡❤️ This microscopic view of a rock from Mountsorrel is full of autumn colours!

📍 East side of Mountsorrel Quarry

ℹ️ "Quartz dolerite", Dr Hallimond

©️ British Geological Survey

Admire this historic picture of Saturn, captured by Voyager 2 in 1981. The giant planet fills nearly the whole view, with north tipped toward the top-right corner. A pale band crosses the middle; along its bottom edge there’s a greenish oval (it would look brown in ordinary light). Just above and left of it is a brighter yellowish patch, and between them some small clouds stand out. Higher up, against the black sky, you can see two moons: bigger Dione on the right and smaller, icy Enceladus on the left.

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I was browsing through NASA’s Photojournal archive when I found this historic image of Saturn, taken by Voyager 2 on Aug. 11, 1981.

The spacecraft was about 14.7 million kilometres away when the picture was captured.

Image credit: NASA/JPL

➡️ science.nasa.gov/photojournal...

🔭 🧪 #histsci

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