Check out these exciting new results from asteroid Bennu samples published in PNAS today by Angel Mojarro, a member of the Astrobiology Analytical Lab at NASA Goddard! Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration www.pnas.org/doi/10.1073/...

My co-authored marine GDGT « cookbook » review paper led by Peter Bijl 👨‍🔬 and @kasiasliwinska.bsky.social 👩‍🔬 is now published in @egubg.bsky.social! doi.org/10.5194/bg-2... Again, I am so happy to be the @cerege.bsky.social @climatecerege.bsky.social expert on #GDGTs! @egu.eu 🧪 ⚒️ 🌊 #PaleoSky (1/3)

Metazooa is a site with essentially a daily phylogeny game. Guess an animal from its' database, and it will draw a tree showing you the finest scale group that both your guess and the mystery animal are both in, and it'll update it from each additional guess. metazooa.com

Dig 10 feet underground, anywhere on Earth, and the ground temperature will be a balmy 50 to 60° Fahrenheit (10-15° C). When you tap that ambient heat and hook it up to a heat pump, it becomes the world’s most efficient form of heating and cooling.

Celebrate the achievements of your organic geochemistry colleagues by submitting your nominations for the upcoming Treibs and Hayes Awards! The deadline for these Organic Geochemistry Division Awards @geochemsoc.bsky.social is October 30th, 2025. Learn more: geochemsoc.org/honors/organ...

🚨Reporters🚨 I'm looking for a reporter who's can zoom into my graduate professional development class and talk about interviewing scientists (e.g., what makes a good interview, how can scientists help reporters, ...).

Check out this great write up of our field campaign out on Seneca lake in the @nytimes.com ! With @erinhassett.bsky.social. www.nytimes.com/2025/10/08/n...

I'm looking for a driven PhD student to join us at @au.dk and to both generate new paleoclimate data in the lab and work on computational problems to understand climate relationships across timescales. Get in touch if you'd like to hear more, and apply by Nov 1! phd.nat.au.dk/for-applican...

I'd be delighted to sponsor a NASA Postdoc Fellowship focused on #biosignatures, #astrobiology, or the Origin of Life here at Hopkins! 🚀

✨Paper #2 has just been published @weareagc.bsky.social ✨ And it is about hopanoids!! Thank you @climategordon.bsky.social for trusting a brand new journal with your research. AGC is 💎 open access: free to publish and free to read 🙌 Geochemists, come publish with us! journals.uu.se/AGC/article/...

New published article entitled: "Hopanoid distributions differ in mineral soils and peat: a re-evaluation of hopane-based pH proxies" from Inglis et al. You will find the full article here: doi.org/10.33063/agc...

New Science Advances paper on Plio-Pleistocene northern African hydroclimate! Tl;dr the wet summer monsoon = summer insolation & the dry winter monsoon = global ice volume Paper here (www.science.org/doi/10.1126/...), Brown press release here (www.brown.edu/news/2025-06...)

Now published in @agu.org Geophysical Research Letters! What happens to marine archaea when they’re hungry? And what does that mean for the TEX₈₆ paleothermometer? Full paper here: doi.org/10.1029/2025... Thanks to my coauthors and mentors for their support — and stay tuned, more is coming!

I am excited to share our latest work, out now in @natcomms.nature.com. We used eukaryotic biomarkers and 18S rRNA genes to examine the ephemeral meltwater ponds of the McMurdo Ice Shelf, revealing pond-to-pond diversity and a biomarker signal for life below the shelf! More at: rdcu.be/erMkt

Wonderful write-up by the amazing @fatimagulhusain.bsky.social on our recent PNAS paper: eaps.mit.edu/news-impact/...

So, our study pushes that back by over 100 million years and adds to the growing body of evidence that the oxidation of the oceans and the atmosphere were at times decoupled, and likely played out in a tumultuous non-linear fashion after the onset of oxygenic photosynthesis. 6/7

Out online today in @pnas.org our paper: "Aerobic nitrogen cycle 100 My before permanent atmospheric oxygenation" With coauthors Gareth Izon, @chrisjunium.bsky.social , Shuhei Ono, and Roger Summons. 1/7 www.pnas.org/doi/10.1073/...

Are you an early career organic geochemist with exciting new science to share? If so, apply to the 2024 GRS & GRC in #OrganicGeochemistry! We hope to offset conf. fees for EC researchers pending available funding. Links: bit.ly/oggrs24 & bit.ly/oggrc24.

... even more examples of #WomenInSTEM: @carolinelear.bsky.social @aecpaleo.bsky.social @astrobonology.bsky.social @khfreeman.bsky.social @chloelcjones.bsky.social @chloerophylla.bsky.social @carbonatefan.bsky.social @geobiomaggie.bsky.social @melissaberke.bsky.social among many others!

... and these #WomenInSTEM: @erinmcclimate.bsky.social @anandpallavijha.bsky.social @soniachaabane.bsky.social @clarab.bsky.social @antacl.bsky.social @nmpalanox.bsky.social @climatesmac.bsky.social @clblanchet.bsky.social @geochemman.bsky.social @mevorrath.bsky.social @ebwilkes.bsky.social ...

Also these #WomenInSTEM doing #paleoclimate and/or #biomarkers: @ellenhopmans.bsky.social @fatimagulhusain.bsky.social @geochemem.bsky.social @sfeakins.bsky.social @triptychphrases.bsky.social @jaquelineqf.bsky.social @palaeoclimate.bsky.social @islatope.bsky.social @antarcticabella.bsky.social ...

Well, it looks like I need to tag a few other 👩‍🔬, including those doing #biomarkers such as #GDGTs, to further support the #WomenInSTEM tag: @cindydejonge.bsky.social @francien.bsky.social @julielattaud.bsky.social @sarah-coffinet.bsky.social @docsabine.bsky.social @villanueva-laura.bsky.social

📣 As part of my DFF-funded project, WARMEST, I'm hiring a biomarker-loving postdoc to join my group and examine terrestrial climate + environment of the western Sahel during the Eocene. Applications are due Feb 15th - contact me with any questions! RT plz :) international.au.dk/about/profil...