Dr. Caitlin Ahrens
@ahrensscience.bsky.social
1.7K followers 920 following 140 posts
Planetary scientist, lunar exploration and sustainability policy. Lunar architecture nerd! UMD-CRESST-II Asst. Research Scientist at NASA GSFC. Science Outreach! Ten Outstanding Young Americans 2018. WVU alum. Views are my own.
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Reposted by Dr. Caitlin Ahrens
chrislintott.bsky.social
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
Reposted by Dr. Caitlin Ahrens
dustinmulvaney.bsky.social
Meet the Vaquita. This is how I close lecture. By presenting an animal with only 20 or so individuals left in the Gulf of California. Facing extinction. What should the commercial interests be doing? What should the governments be doing? Are they doing enough?
Extremely handsome dolphin/porpoise https://earth.org/vaquitas-facts/
Reposted by Dr. Caitlin Ahrens
Reposted by Dr. Caitlin Ahrens
timlichtenberg.bsky.social
w/ Oli Shorttle, @johannateske.bsky.social & Eliza Kempton we reviewed our current understanding and prospects for peaking on the inside of small #exoplanets in "Constraining exoplanet interiors using observations of their atmospheres": www.science.org/stoken/autho... & arxiv.org/abs/2510.08844 🔭🧪⚒️☄️
Illustration of predicted interior structures of sub-Neptune exoplanets. Observed density and atmospheric constraints are interpreted in three scenarios, each with a gaseous envelope. Water worlds have a small metal core, rocky mantle, high-pressure ice layer, and possible liquid water ocean. Gas dwarfs have a larger metal core and a magma ocean. Global supercritical regimes have no clear boundaries between layers. Image credit: Mark A. Garlick.
Reposted by Dr. Caitlin Ahrens
hourlycosmos.bsky.social
Mars - Cloudy Arsia Mons - CNSA Tianwen-1 - From Andrea Luck (andrealuck.bsky.social) - https://flic.kr/p/2qLGDnY
Credit
Image Processing: Andrea Luck
Raw Image Copyright: CNSA/CLEP/PEC/MoRIC

Image created using data processed from moon.bao.ac.cn/

Mission: CNSA Tianwen 1
Time: 2022-02-07T20:41:19.967000Z
Longitude:-117.848291
Latitude:-10.298203
Altitude: 688 km
File name: HX1-Or_GRAS_MoRIC-F-0001_SCI_N_20220207204119_20220207204119_00866.2C

Credit
Image Processing: Andrea Luck
Raw Image Copyright: CNSA/CLEP/PEC/MoRIC
Reposted by Dr. Caitlin Ahrens
ryanjfrench.bsky.social
In 2024, the Sun reached the peak of its 11-year solar cycle. Over the year, the Sun produced hundreds of notable solar flares and coronal mass ejections! ☀️

I have uploaded a 13-minute YouTube video presenting the highlights of those events! Enjoy. youtu.be/WJxuxAA82uI?...
Reposted by Dr. Caitlin Ahrens
Reposted by Dr. Caitlin Ahrens
astroptere.bsky.social
Solar conjunction for our Europa spacecraft is now over! While we did not uplink commands for about 10 days, we were getting some telemetry confirming yhr health of the vehicle. The team is now back in the driver seat! To check out the current location of Clipper:

eyes.nasa.gov/apps/solar-s...
Eyes on the Solar System - NASA/JPL
Explore the 3D world of the Solar System. Learn about past and future missions.
eyes.nasa.gov
Reposted by Dr. Caitlin Ahrens
drskyskull.bsky.social
Time for a quick #OldSchoolDungeonsAndDragons! Let's look at Classic Warfare (1975), by Gary Gygax.
Cover of ring-bound Classic Warfare, "Rules for ancient warfare from the pharaohs to Charlemagne," by Gary Gygax. Shows an Egyptian chariot rider as an illustration
ahrensscience.bsky.social
Wearing my rainbow donut Saturn socks for my presentation today! 🤩
Reposted by Dr. Caitlin Ahrens
melina-iras07572.bsky.social
Planet #Uranus 🪐 and inner moons with #JWST NIRCam 🔭 #planetsci Observation from this Monday (lol moon🌕day).

Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT

Program: www.stsci.edu/jwst-program...
Uranus with rings and small elongated dots (tracks) around it.
Reposted by Dr. Caitlin Ahrens
hourlycosmos.bsky.social
Titan as seen through three different filters: August 20, 2013 - From Val Klavans (valklavans.bsky.social) - https://flic.kr/p/fAMQzR
On August 20, 2013, Cassini's camera system, the Imaging Science Subsystem (ISS), looked for clouds across Titan's sub-Saturn hemisphere from 1.33 million kilometers (0.82 million miles) away. The ISS took a number of images of Titan in different filters. Three of which were used for this composite image. This RGB false color composite of Titan is in 3 different filters: continuum filter (where methane is more transparent), methane band (where methane is strongly absorbing), and ultraviolet.

These images were taken on August 20, 2013 and received on Earth August 22, 2013. The images were taken using the CL1, CB3, UV3 and MT3 filters.

Credit: NASA / JPL / SSI / composite by Val Klavans
Reposted by Dr. Caitlin Ahrens
steve-elardo.com
I'm incredibly honored to be a part of this team and proud of this award!!! But I'm just a very small part of this program. Anita Marshall @bakingsodavolc.bsky.social deserves all the credit for the idea, the passion, the grunt work, and for its success!!! ⚒️🧪🔭
ufgeology.bsky.social
🎉🏆🥳UF Geology's GeoSPACE field program has been honored with the Award for Advancing Inclusive Excellence in STEM from @agu.org!!! Led by Prof. Anita Marshall @bakingsodavolc.bsky.social, it's the first designed to be accessible to students with disabilities and other complicating life factors ⚒️🧪🔭
GeoSPACE field program honored with national award for advancing inclusive STEM education
GeoSPACE is the first geoscience field camp designed specifically to be accessible and inclusive for students and faculty with disabilities.
news.clas.ufl.edu
Reposted by Dr. Caitlin Ahrens
kevinstalder.bsky.social
Statement from the Nobel Peace Prize Committee 👏 🙏
Reposted by Dr. Caitlin Ahrens
coreyspowell.bsky.social
China's Tianwen-2 is on its way to Kamoʻoalewa, an asteroid that currently doubles as a "quasi-moon" of Earth. The spacecraft will collect samples & bring them back home.

On its outward trajectory, Tianwen-2 looked back and got this lovely view of our planet. 🧪🔭

english.news.cn/20251001/ef3...
This image released by the China National Space Administration (CNSA) on Oct. 1, 2025 shows a view of the Tianwen-2 probe alongside Earth, captured by the probe during its deep-space journey. The newly released image, acquired by a monitoring camera mounted on the probe's robotic arm, showcases China's five-starred red flag and the white return capsule against the backdrop of a distant, blue Earth. (Some slight image processing by me.)
Reposted by Dr. Caitlin Ahrens
westportastro.bsky.social
🌏 A powerful M7.4 earthquake struck off the southeastern coast of the Philippines near Mindanao, about 79 miles from Davao. Tsunami warnings were issued. The USGS seismometer at the Westport Observatory detected the quake 8,850 miles away! 🌎 #Earthquake #Philippines #Seismology
Three seismograph charts from Westport, CT, showing blue, red, and green waveform data recorded on October 10, 2025, with time stamps and network status details.
HHZ = vertical
HH1 = North/South
HH2 = East/West
Reposted by Dr. Caitlin Ahrens
nbcnews.com
A former Wyoming library director who was fired amid an uproar over books with sexual content and LGBTQ+ themes that some people complained were inappropriate for young people and who sought their removal from youth shelves will be paid $700,000 after settling a lawsuit.
Wyoming library director fired amid book dispute reaches $700,000 settlement
"It's been a rough road, but I will never regret standing up for the First Amendment," Terri Lesley said.
nbcnews.to
Reposted by Dr. Caitlin Ahrens
elleisanisland.bsky.social
this cat looks like one of the Old Master painters who's just slept with three servants, argued viciously with his annoying patron about the inferior ham he receives, and then painted his masterpiece out of spite
Collection of paints, brushes and pots on an old table. In the corner a large very fluffy cat sprawls in decadence
Reposted by Dr. Caitlin Ahrens
science.org
In an analysis of 1.2 million news stories about scholarly research, men-led papers were found to receive more attention overall and were heavily overrepresented in the top 5% of most covered studies. https://scim.ag/4o7l5a5
When women researchers publish, media attention doesn’t always follow
Men-led papers receive more media coverage than women’s, new study finds
scim.ag
Reposted by Dr. Caitlin Ahrens
artologica.net
Shanthi Chandrasekar, Cosmic Web, pen and ink on paper #sciart
Geometric art with blue background and connected red and yellow dots
Reposted by Dr. Caitlin Ahrens
princetonupress.bsky.social
Now available in #paperback, Volcanoes in Human History by Jelle Zeilinga de Boer & Donald Theodore Sanders is the classic account of how volcanism has shaped human culture & science, from the Bronze Age eruption that destroyed Minoan Crete to Mount St. Helens.

press.princeton.edu/books/paperb...
Volcanoes in Human History: The Far-Reaching Effects of Major Eruptions by Jelle Zeilinga de Boer and Donald Theodore Sanders. The classic account of how volcanism has shaped human culture and science, from the Bronze Age eruption that destroyed Minoan Crete to Mount St. Helens.
Reposted by Dr. Caitlin Ahrens
Reposted by Dr. Caitlin Ahrens