There is a 20 km high cliff on Uranus' moon, Miranda. Because of the low gravity, if you jumped off it, it would take 12 minutes to reach the bottom. Image credit: JPL/NASA

Artemis II: The first human mission to the moon in 54 years launches soon — with a Canadian on board

A new calf has joined the pod! Nature is beautiful 🥹

HEY THAT'S US! (I'm second author in Czaplinski et al. 2021)

Hey man, are you a region of enhanced potassium, phosphorous and rare earth elements on the Moon? Because you're a bit of a KREEP.

SHOCKINGLY my abstract for LPSC 2026 was not accepted

I'm curious who else is taking the @europlanetmedia.bsky.social GMAP Winter School this week! It would be nice to connect with fellow students, since our interaction online seems limited.

Spent 15 mins this morning trying to figure out the Perseverance rover's preferred pronouns to no avail. She/Her, or They/Them?

The blank wasn't blank.

Megafloods and ice streams create similar landform expressions - did either create Martian outflow channels? Anna Grau Galofre's team is asking this question. #EPSCDPS2025

There are ore-grade nickel deposits in Neretva Vallis, near Jezero crater, Mars. #EPSCDPS2025

Noémie Carlot presented an absolutely stunning map of Eberswalde delta fan, Mars. Look at all those lobes showing channel migration! The river sediments were more resistant to erosion than the surrounding layers, creating intricate inverted channels. #EPSCDPS2025 #Mars doi.org/10.5194/epsc...

A very succinct summary of Christian's talk today at #EPSCDPS2025 on our work studying the effects of perchlorates on meteoritic organics 👇

The presence of perchlorate alters organic compounds, but does not erase them - laboratory experiments on C12 acids #EPSCDPS2025

3 things ahout Apophis we have to communicate as science community: 1) Apophis will safely pass the Earth 2) Apophis will safely pass the Earth 3) Apophis will safely pass the Earth Dr. Richard Binzel (MIT) at the Keynote talk in room Jupiter #EPSCDPS2025

Friendly reminder that we've landed a spacecraft on Titan! This photo was taken by the Huygens lander (Image: ESA/NASA). #EPSCDPS2025

Dragonfly Science Goals paraphrased fr Barnes et al. 2021: How far has probiotic chemistry progressed on Titan? What role do the deserts play in the methane cycle? What are the transport mechanisms? Where and how has liquid H2O been in contact with organics? IS THERE LIFE ON TITAN? #EPSCDPS2025

NASA reviews are conducted using Dual Anonymous Peer Review, meaning you don't need to depend on name-recognition when submitting grant proposals. You may need to be at a US-based institution, though. #EPSCDPS2025

TIL: ESA funding costs the average European €14 per year. #EPSCDPS2025

"If you are fun to work with, you are wanted in every field." - Academia and Industry panel at #EPSCDPS2025

~*Axel Heiberg Island mentioned*~ in the Astrobiology session. #EPSCDPS2025 I was there with Mark Fox-Powell, just outside this image. All that white stuff? Not snow! It's salts!

Keep your eye out for new QGIS plugins for Hayabusa data, being developed by Mayumi Ichikawa and team at NTT DATA Corporation, in partnership with JAXA. #EPSCDPS2025

Does Callisto have an undifferentiated ice shell? If so, it might behave like salt tectonics(!) on Earth, or ice tectonics on Ceres. #EPSCDPS2025

There is a salt-rich layer at the base of Europa's ice crust, concentrating in fractures at the ice-ocean interface. #EPSCDPS2025

Check out Dr. Byrne's creative poster at #EPSCDPS2025! Could Venus have been Earth-Like? As asked in ye old medieval manuscripts...

Europa and Ganymede, moons of Jupiter, have auroras! #EPSCDPS2025

Painted Desert, USA "looks just like Mawrth Vallis!" (Mars) - They both have thick beds of clays. #EPSCDPS2025

"Mysterious red blobs" in CaSSIS IRB (false-colour) images are likely impact-shocked anorthosite or other plagioclase-rich rock. #EPSCDPS2025

I worked with Riccardo while I was at ESA. He was a fantastic scientist.

Today I learned that Titan has "ephemeral islands" i.e. islands or something floating that wasn't there in one (satellite radar) image, then appeared in a subsequent image. That's really cool. #EPSCDPS2025

The ESA-led EnVision mission (Venus satellite) is at risk if NASA withdraws funding for the VenSAR instrument. #EPSC-DPS

Planetary Science friends: Should I go to LPSC next year? Yes - it is the best conference for your career and people have already forgotten your face No - Are you crazy? It's in Texas, USA!

Leave it to Norway to ruin something great (dates).

They’re planning on building a detention center for migrants in the middle of the fetid swamps of Florida. If you think this is something new, the first internment camp they sent me and my family to in 1942 was a barbed wire prison called Rohwer. It was located in the swamps of Arkansas.

This is a bird's nest, made almost entirely out of plastic. Found in Hampshire, England.

It’s Mary Anning’s birthday, so time to share @katebeaton.bsky.social’s brilliant cartoon again.

In 1982, a study very accurately predicted future (i.e. present) CO2 levels and subsequent global temperature increases. Whose study was this? Exxon Mobil.

I think I figured out what I need to solve my paper-writing troubles: ✨More Data✨

Dear [supervisors], I cannot [interpret my organic d13C data] - Slender Aphrodite has filled me with longing for a girl...

Musk rn

Every single Democratic lawmaker should be calling for Hegseth's immediate resignation right now. Not just some. Not just a few dozen. Every single one, starting at the top with Mr. Schumer and Mr. Jeffries. And the fact that it hasn't happened yet is nearly as shocking as Hegseth's conduct.

I entreat you to guess what I am eating.

For the first time in human history -- not just in recorded history, but in the 3+ million year existence of modern humans -- carbon dioxide in the Earth's atmosphere has just breached 430 parts per million. We are in a climate emergency.

The regression is linear!

Hey look. Corruption.

I'm on the JAMSTEC website now. I'm only here for another month, but it's nice to be included. www.jamstec.go.jp/biogeochem/p...

If the Trump/Musk administration defunds the NASA Mars Curiosity ChemCam team, would that be "owning the LIBS"? #Mars #NASA #Curiosity #Please-don't-hate-me-I'm-just-coping.

It is the darkest of all possible humor that Disney is publicly rolling back their DEI initiatives and removing content warnings from older, racially-insensitive work on the same week that they are releasing a new MCU movie with a Black man as Captain America.

Oops 😬