I'm absolutely THRILLED to hear my Mars colleague, Dr. Lauren Edgar was selected for the 2025 ASCAN Class. She will be an unbelievable addition to the Astronaut Corps- representing our Mars geology community well- and joining our current Mars geology NASA Astronaut, Dr. Jessica Watkins. AD ASTRA 💫

STARTING NOW!!! I'll be standing by to share any insights as the candidates are announced.

One more wake up! Can’t wait to find out who was selected for the 2025 NASA Astronaut Candidate #ASCAN Class. Unfortunately I have conflicting meetings, so I’ll watch on a delay. Hope we hear some familiar names 🧇🚀

Free film showing, Climate change and Greenland's melting ice. University of Vermont, Sept 21, 5 pm. More info here: events.uvm.edu/event/the-me... ❄️🧪💙📚 #scicomm #climate #UVMresearch #science  🌎 🔬 ⚒️ #geosky #ClimateHealth #ClimateAction

#Hematite is up again. Let's goooo my fav lil' BIFy mineral & Martian dust! #MinCup25

Great film @fieseler.bsky.social! It was a nice surprise to see some of my deep-sea colleagues & OSM24 featured here 🌊🧪

I can’t believe I caught this 🦋 Just before noon, I figured I better check again… the hangar bay was opening! Little out of focus for a few seconds, but I got the focus back- apologies- I was so excited & shooting w/ the sun on my viewer.

Good Morning 🌎 It’s almost time to come out of the hangar & go wheels up 🦋

10 days to go! NASA’s 2025 #ASCAN Class announcement (🤞Group 1 & 2) 09.22.2025

24 years ago- events were beginning to unfold in NYC; Arlington, VA; and Shanksville, PA that changed the world. Today, we remember. 🇺🇸

*sighhh* Love seeing Mars back on my Feed 🥰 Shout out to all my Martian frens! I may be in the deep sea now, but I'll always be a rock mapping Martian.

Here is the paper published by @nature.com with an accompanying News and Views article 🧪🔭 Redox-driven mineral and organic associations in Jezero Crater, Mars ☑️ www.nature.com/articles/s41... ☑️ www.nature.com/articles/d41...

HERE WE GO! Live now.

My NOAA colleague just sent pics of a sparkly, fresh R/V Ron Brown (finishing midlife). For comparison: Found a 2018 pic of us doing “grad student things”. Totally normal. 😅 < I 💙 being out to sea! > 🌊

My Wisconsinite-to-Oceanographer roots are starting to make sense. Not only was the R/V Endeavor constructed there, but Alvin's titanium sphere was forged by Ladish Forging in Cudahy, WI. I mean- standing at the shore- Lake Michigan and Superior do "seem" like oceans. 🧀⛴️

Excited to hear the announcement for Percy's "Sapphire Canyon" sample (shout out Dr. Katie Stack Morgan 🚀):

🚨Webinar Reminder~ Happening Tomorrow (deep-🌊)🧪 < Hope to see some of you online > Ecology and ecosystem services of inactive hydrothermal vent deposits Dr. Jason Sylvan (Texas A&M University) & Dr. Amanda Achberger (Louisiana State University)

HECK YEAH #TeamHematite!!! Great job Everyone! Even if Hematite falls out in the next round, you’ve made this Fe-oxide Gal smile 🥰 Happy Sunday 🧲⚡️ #MinCup25

VOTE HEMATITE! #MinCup25 As an Fe-oxide researcher, I’m excited to advocate for this 🧲 mineral. Here we go: 🟥 Banded Iron Formations 🫐 Mars dust + “blueberry” spherules 🧲 Magnetic (helpful for easy separation!) 🎨 Ancient pigments & those awesome 80s/90s necklaces (you KNOW you had them!)

Found this dive knife on a Divemaster cert dive in 1999 off Bonaire. It’s been sitting in a makeshift sheath for- gasp- 26 years 🫠 Also found these random”Shannon doodle gems” in my old dive log.

I need to revisit this. I always enjoyed being creative in teaching/ outreach, but I've slid back to standard presentations (current job). However, you better BELIEVE I'll be at future conferences w/ a tiny roll of red ribbon to "roll out the tiny red carpet". Colleagues, you've been warned. 😎

🌊 OPPORTUNITY COBRA’s Early Career Deep-Sea Expedition Leadership course. Applications close Sep 18, 2025 ⤵️ [Bigelow- Lab for Ocean Sciences | Crustal Ocean Biosphere Research Accelerator (COBRA)]

This is not your Shakespeare type of “Romeo”. Enjoying some Navy STEM things this weekend ⚓️

🌊With the Fall semester upon us, it's time to start thinking about recruiting/applying to grad school for 2026. If you are a marine scientist looking for a graduate student, I've created a form where you can add your name and other info: docs.google.com/forms/d/e/1F... Please share widely! (1/2)

In case you’ve never seen a data center, or their construction, here you go. This is Loudoun County, VA 🇺🇸. There are kilometers of these buildings. In the second photo, you can see several others- and so many more being built across northern VA. Q: How much energy do they consume? A: *YES.* All.

IT IS HAPPENING!!! I’ve been spent the past few years cultivating native plants around my property. The ecosystem responded 🥹 I’m up to: deer, foxes, increased bees/ butterflies/ insects, frogs, turtles, bats, rabbits, & hummingbirds/ increased songbirds (& raptors/owls). No black bears- yet.

Oly shoes 🤝 meet Rogue. 🏋🏻‍♀️ #ScientistsWhoLift

Behold, the #MinCup35 bracket! Use it to follow along, plan campaigns to support your favs, or make predictions on how voting will shake out. We start at the top left on September 1st, then alternate left and right as we work our way down.

HEMATITIE!!! Let's GOOO Fe-oxides 🖤

Reverting my current résumé structure back to a 2-pg academic CV has been... a solid challenge. SOLID. Challenge. I've been out of academia too long 😅

Full-time, 9-month, Tenure-track Assistant Professor in Paleoclimatology position at the University of Hawaii. www.indeed.com/viewjob?jk=4...

🌊🧪On our Aleutians expedition, a 0300 onboard message got everyone out of their racks. We unintentionally mapped a MASSIVE landslide along a ridge line. Sent the initial data to USGS onshore SMEs- They were EXCITED. So, we backtracked a few kms to collect a suite of data. Here’s the product:

🌊 --> 🪨 I'll translate these into "Geologist": (clockwise from top left) - Pumpkin-spice squishy star (extrusive igneous) - Armored pinchy hands (metamorphic) - Tiny windsocks (extrusive igneous) - Squishy w/ curls (*not calcite or halite; do NOT lick)

During my last move, I went from ~2.5Myr coastal plain sediments to >600Myr metaseds. Great job on these map products, USGS 💚

A geo oceanographer discovers #InvertFest… I had a lovely conversation with this sleek predator yesterday.

🚨 JOB ALERT (🧪):

🚨 POSTED: 2025 Draft USGS List of Critical Minerals Several new elements were added; + removed. 👉 These elements will directly guide U.S. agency’s actions (land + offshore) over the next ~3yrs, so please review + comment, as applicable. Public comment ends 9/25/2025 (instructions in FR link) 🧪🌊

USGS released the 2025 Critical Minerals List draft (new elements added!):

As a fellow IRD person, I was also surprised to learn of “KRD” (not sure if that term is coined yet, but @thomasronge.bsky.social and I have adopted it). Nothing like finding a random cobble on an Aleutian seafloor of fines to ask the crazy Q: “Was this… kelp!?!” Excellent 🧵, Thomas! ⬇️

Last week- while attending a workshop at USGS HQ- I re-homed several publications set for disposal. Aside from the relevant content, this particular book was printed 101 years ago 🤩 Reprints were $1.75.

Upcoming Event: In-person & live-stream. 📍Smithsonian Air & Space (downtown DC)

Fall is tapping on the door. < heart sighs 🥰 > Also discovered a 7-mile stretch of my local river for tubing!

Well, I can finally widely share some exciting news. On Sep 22, NASA will announce the 2025 Astronaut Candidates. While I'm not in that group, I was invited to interview for the 2025 class. I can't discuss details of the process, but I can share my general experience. Please enjoy! 🌊🧪🪨🚀

🚨Looking for a Geoscience Perspective on Climate Change? Exp403 co-chief Kristen St. John and former JRFB chair Larry Krissek just published this OPEN ACCESS book on it! Download it for free below! link.springer.com/book/10.1007...

Can’t wait to see who was selected for NASA’s 2025 ASCAN class! (Let’s gooooo Group 1 🚀)

Oooooof! OBX is already seeing the energy. High risk for widespread coastal erosion over the next ~24 hours. #HurricaneErin

🌟Upcoming Webinar: Ecology and ecosystem services of inactive hydrothermal vent deposits Dr. Jason Sylvan (Texas A&M University) and Dr. Amanda Achberger (Louisiana State University) 🧪🌊🪨

Two fully NSF- funded Ph.D. positions in hydroinformatics at the Clemson University. Apply by 15 October. See also: csdms.colorado.edu/wiki/Jobs

< Immediately holds up a score of 10 > 👏👏👏

Rips are going to be MAD along the mid-Atlantic coast. Definitely going to be dangerous. I’ll be watching buoy data + beach cams closely 👁️_👁️ That possible “boop-fly-by” to Hatteras + OBX is too close for comfort.