Valerie Payré

I am a planetary scientist working on Mars geology

Yes

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Seismic evidence for a highly heterogeneous martian mantle A planet’s interior is a time capsule, preserving clues to its early history. We report the discovery of kilometer-scale heterogeneities throughout Mars’ mantle, detected seismically through pronounce...

Hot on the heals of the inner core paper in Nature comes another InSight paper in @science.org from a team at @imperialcollegeldn.bsky.social
A single plate planet preserving characteristics of its formation, highly heterogeneous Martian mantle!
🔭🧪 #planetsci
doi.org/10.1126/scie...

Perseverance Meets the Megabreccia - NASA Science Written by By Henry Manelski, Ph.D. student at Purdue University

Mission update: Perseverance meets the Megabreccia, a chaotic mixture of broken rock fragments likely produced during ancient asteroid impacts.

by Henry Manelski @henrymanelski.bsky.social
science.nasa.gov/blog/perseve... #Mars 🧪 #PlanetSci

Rock discovery contains ‘clearest sign’ yet of ancient life on Mars, NASA says | CNN Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars may have potentially been made by ancient life.

Was there life on Mars? Super exciting discovery by the Perseverance rover!
@nasapersevere.extwitter.link #NASA #Mars #Perseverance #Mars2020 #Life #planetaryscience

The deadline for a tenure-track position is coming! September 15th!

[TENURE-TRACK FACULTY POSITION]
SEES at the University of Iowa is looking for a researcher in solid Earth with strong field work experience 🔨 and possible interests in Earth and planetary processes ☄️ and environmental implications 🌱
DEADLINE Sept. 15th!
APPLY HERE: jobs.uiowa.edu/faculty/view...

[TENURE-TRACK FACULTY POSITION]
SEES at the University of Iowa is looking for a researcher in solid Earth with strong field work experience 🔨 and possible interests in Earth and planetary processes ☄️ and environmental implications 🌱
DEADLINE Sept. 15th!
APPLY HERE: jobs.uiowa.edu/faculty/view...

A tall stratified butte with steep walls. NASA/JPL-Caltech/MSSS/Kevin M. Gill

Amazing MastCam mosaic of the Mishe Mokwa butte and the Yardang Unit beyond. Taken in the morning of Sol 4566 by the Mars Curiosity Rover.

flic.kr/p/2ratr5a

It's such a roller coaster 🤩

😪

Preparing for #EarthDay 2025! VR on #Mars getting all set up!
#uiowa #Earth&EnvironmentalSciences #PublicEvent

Trump White House budget proposal eviscerates science funding at NASA “This would decimate American leadership in space.”…

This really is an extinction level event for NASA's science programs.

arstechnica.com/space/2025/0...

We moved to Bluesky!
Follow us for updates on news, blog posts and activities of the #GMPV #EGU division!

Friends, I've been thinking about this for a few years now, but the events this week have made it clear that now is the time.

It's time to work to establish a professional planetary science society in the United States.

A 🧵

The Perseverance rover captured some pretty massive dust devils earlier today. That large one in the foreground was at least 500m high. #PlanetSci

flic.kr/p/2qHbPLV

NASA/JPL-Caltech/Simeon Schmauß

Here's what plate tectonic movement looks like on Europa.

Part of the Northern Falga region, centred ~50N.

Animation, incredible work and data are all by Geoffrey Collins and co-authors (open access)
doi.org/10.1029/2022...

Please share: I have a friend with access to food trucks in LA that is looking for locations to set them up this weekend that will be useful to the largest number of people and will allow a food truck to park there. Not looking for suggestions but actual contacts

L.A. restaurants offering shelter, discounts and food to fire evacuees and first responders These L.A. restaurants and coffee shops are staying open to shelter evacuees, offering discounts and, in some cases, free food to evacuees and first responders to the numerous ongoing fires in Souther...

Here is an ongoing list of LA restaurants that are offering shelter, food, and support to first responders and evacuees:

bit.ly/LAaid

I have now heard from three friends at JPL who lost their homes this morning. Beyond devastated and heartbroken for them. Want to help however possible (gofundme?). A group is starting to collect info so stay tuned for ways to help.

NASA's Jet Propulsion Lab closed due to raging LA fires "No fire damage so far (some wind damage) but it is very close to the lab. Hundreds of JPLers have been evacuated from their homes & many have lost homes."

The fires in LA are having a big impact on the #NASA community. I'm starting to hear that several colleagues at #JPL have lost their homes. I'm so sorry for what you are going through and I hope that you and your families (including pets) are able to stay safe. 🔭🪐🧪
www.space.com/space-explor...

This is what Venus looks like in the infrared.

The lighter colours come from the lower, super-hot atmosphere *glowing* through the cooler, higher cloud layers.

Image credit: JAXA/ISAS/DARTS/Damia Bouic

Aperiodic reminder that the Olympus Mons volcano on Mars is wider (590 km) than Saturn's icy moon Enceladus (504 km).

So this image is pretty much to scale.

(Not a real image, mind, but a boy can hope)

#ROSETTA INTERNATIONAL MISSION
COMET #67P/CHURYUMOV-GERASIMENKO

14 feb 2015 Distance: 14.2 km
OSINAC 7x Red Orange Blue filters

rosetta-osiris.eu/image/NAC_20...

ESA/Rosetta/OSIRIS/j. Roger

1/6
Thread: 2 dust storms on Mars, captured by ESA's Mars Express HRSC on the Olympus Mons!

Martian Dust storm number 1 on July 29, 2023 🔭
Full size & more info: flic.kr/p/2qBsEt3
Original non interpolated version here: flic.kr/p/2qBruHB

Processing: Andrea Luck CC BY
Raw data. ESA/DLR/FUBerlin

We are hiring! Full details at the link below. We are looking for 2 postdocs to work on reconstructing past sea surface temperatures and sea ice distributions as part of the "Past 2 Future" consortium seeking to improve climate models with palaeoclimate data durham.taleo.net/careersectio...

Did you know we're sending a probe all the way to the Venus surface to figure out if the planet was ever Earthlike?

Read about NASA's incredible DAVINCI mission, and the first aerial photographs humans will ever take of Venus...

science.nasa.gov/uncategorize...

It's just a jumbled pile of rocks but they're on ANOTHER FREAKIN' PLANET