NASA’s Curiosity Finds Organic Molecules Never Seen Before on Mars Seven organic molecules were identified for the first time on Mars, increasing our understanding of the kinds of molecular preservation possible on the Martian surface.

News directly from NASA-JPL:

📍MSL Curiosity Rover, Gale crater, Mars

(*Excited to hear more about this over the next 3 days!)

🧪🔭 #PlanetarySci

MEPAG Day 1 (April 21, 2026) Agenda

#MEPAG Day 1 Agenda (21.04.2026)

🔔 #MEPAG kicks off today. Stay tuned for some highlights from the exciting world of Mars Exploration.

🧪🔭 #PlanetarySci

Great geospatial offshore tool! Check out those layers under 'Seabed and Sediments'
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The Fish Doorbell — The Fish Doorbell Did you spot a fish? Press the Fish Doorbell! This alerts our lock operator to let the fish through. The Fish Doorbell is in Utrecht, NL.

🚪🔔🐟 Here’s your reminder, the Netherlands’ fish doorbell is live!

One of my favorite citizen science projects 🧪🌊

Victor Glover on Artemis II crew dynamics:

“Yes, we get along well, but we ALSO disagree well.”

Love this framing! I tend to approach disagreements with an open mind for resolution, but I like this slight pivot in mindset.

*1,000mi (1,600km)

Watching a big-time tornado head towards my parents’ house- from >1,500mi away- is a terrible feeling.

Stay safe, Wisconsinites!!! #WIwx

From NASA: “NASA astronaut Victor Glover, Artemis II pilot, left, and NASA astronaut Christina Koch, Artemis II mission specialist are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Reid Wiseman, Artemis II commander, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship.” Image Credit: NASA/Bill Ingalls

From NASA: “NASA astronaut Reid Wiseman, Artemis II commander, left, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, are seen sitting on a Navy MH-60 Seahawk from Helicopter Sea Combat Squadron (HSC) 23 on the flight deck of USS John P. Murtha after they and fellow crewmates NASA astronaut Christina Koch, Artemis II mission specialist, and NASA astronaut Victor Glover, Artemis II pilot, were extracted from their Orion spacecraft after splashdown, Friday, April 10, 2026, in the Pacific Ocean off the coast of California. NASA’s Artemis II mission took the quartet on a nearly 10-day journey around the Moon and back to Earth. Following a splashdown at 5:07 p.m. PDT (8:07 p.m. EDT), NASA, U.S. Navy, and U.S. Air Force teams are working to bring the Orion spacecraft aboard the recovery ship.” Image Credit: NASA/Bill Ingalls

In honor of International Day of Human Spaceflight, thank you to everyone who has played a role in these complex, inspirational fields. This global team is truly remarkable: past, present, + future.

🧪🔭 #PlanetarySci

Hooyah Navy! Always a career highlight when we welcome astronauts back to earth 👩🏻‍🚀⚓️

I was surprised this didn't get more coverage! Thanks for posting.

Shout out USS John P. Murtha (⚓🐊)

LPD-26 was selected as Friday's recovery vessel for the #ArtemisII crew (~1700 PT). Bravo Zulus all-around + Hooyah Navy!

Keep tab via MarineTraffic for updates 🌊🔭

Woah! I missed these. Thanks for sharing.

Listening to Jeremy relay his observations re: ruggedness of the 🌖 terminator… it just hit me how incredible this must be through their own eyes.

Imagine the most spectacular place you’ve ever been. Did the pictures do it justice? A little bit, right?

But / not / fully. #ArtemisII

It was so lovely to watch this announcement and dedication 🤍

Just a reminder. When you look at the moon tonight, there will be humans flying around it.

Just sayin'. #ArtemisII

Victor is doing an incredible job with his observations and logistics. The #ArtemisII astronauts went through extensive training for this evolution (shout out to those training teams).

The planetary geology portion of my heart is so happy right now!!! BZ Team 👏👏👏

#ArtemisII Lunar Approach 📸🌔

🌊 When you dive on the HOV Alvin, each Observer has a tablet + we were tasked w/ meticulous record-keeping. The anticipation was v. stressful.

Now, imagine floating in that small "office" while looping around the moon + ensuring you record... EVERYTHING 😮‍💨

🔭🧪

💡 Follow along the #ArtemisII mission over the next few (exciting!!!) days via NASA's interactive AROW (Artemis Real-time Orbit Website):

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Deep Space Network (DSN) dashboard shows communications between earth-based communication centers and several deep-space instruments/ missions. Artemis II is shown as "ART2".

Incredible to see -HUMANS- on the Deep Space Network (DSN)! As a Martian, it's strikingly fun to see new faces at the DSN party 🪩🕺

ART2 current RT light-time: 0.15s

🧪🔭 Data and live DSN dashboard: eyes.nasa.gov/apps/dsn-now...

Big moon loop ♾️ time. Let's go space camping!

Interesting! In the Arctic, we also see similar distinct IRD peaks at 18ka (indicating ice rafting pulses to the Fram Strait... broken down by circumArctic groups- BIG time pulses sourcing to the Barents Sea Ice Sheet).

Pointing at the perfect emoji for the Artemis II launch… the happy crying emoji 🥹

I have waited -YEARS- to scream this:

🗣️ MECO FOR ARTEMIS II 🎉🎉🎉

I’m not crying……. 🥹

🫡 ARTEMIS 🚀

GO FOR LAUNCH!!! Let’s goooooo 🚀🥹

Geology, space camping, and TRL boosts. Heck yeah! To the moon ♾️

(Yes, our ASCAN interviewee groups are watching!!!)

Table showing schedule for NASA HRP IWS from Tuesday, April 7 through Thursday, April 9, 2026.

SCHEDULE Quick Glance-
2026 NASA Human Research Program Investigators' Workshop (NASA HRP IWS)
🧪🔭

🚨 NASA- HRP IWS (4/7-4/9, 2026)

As we gear up for today's #ArtemisII launch window, a friendly reminder that (free + virtual option) registration is still open for the 2026 NASA Human Research Program Investigators' Workshop

Deets ⤵️
🧪🔭

Seriously awesome memorabilia. Very grateful!

Handmade coffee cup glazed with shades of turquoise, deep violet, and tan.

Bottom of the coffee cup hand-stamped with “AK25” representing our Alaska Aleutians Expedition in 225; and “AT5038”, our expedition number.

Our lovely colleague handcrafted coffee cups for the exp science team 🥹

ℹ️ Made from deep-sea mud + clay collected by the HOV Alvin on our Aleutians, AK Expedition

*For several reasons, a small subset of fine-grained samples were unusable, so she transformed them into art

Thank you Dr. AW 🫶
🌊🧪

NASA Webb, Hubble Share Most Comprehensive View of Saturn to Date (NIRCam, unlabeled) Webb teamed up with NASA’s Hubble Space Telescope, observing the ringed planet in complementary wavelengths of light to give us a richer, more layered understanding of its atmosphere. The Hubble image...

Full NASA Webb #JWST album:

🔭🧪 #PlanetarySci