Neeraja Chinchalkar

Enhanced color cutout shows a closeup of a crater wall with two prominent and well-defined gullies. The gullies extend far down the wall from the rim of the crater, ending in sedimentary fans. The scene is less than 1 km, under 1 mile, across. (NASA/JPL-Caltech/University of Arizona)

Black and white image shows a fuller view of the impact crater where three gullies are visible, extending from the rim of the crater close to the floor, ending in sedimentary fans. (NASA/JPL-Caltech/University of Arizona)

A Crater and Its Gullies

The objective of this observation is to examine gullies in a small crater. Images like this will help increase our inventory and understanding of Martian gullies so that perhaps better models can be constructed.

uahirise.org/hipod/ESP_07...
NASA/JPL/University of Arizona

Happy International Day of Women and Girls in Science! You can try to silence or erase us, but we aren’t going anywhere. We will keep fighting and being awesome 😤

New #Martian achondrite found in #Arizona 🤩👇👌
#PlanetSci

Bennu asteroid contains building blocks of life, say scientists Bennu contains minerals and thousands of organic molecules, including the chemical components that make up DNA.

Bennu Asteroid contains building blocks of life, say
www.bbc.com/news/article...

Another paper from our @issibern.ch team on #comet ☄️ activity is out, this one led by Olivier Groussin from Marseille, and focusing on 67P's thermal environment 🔥❄️.
Summary on our group webpage here
scitechss.iaa.es/how-hot-is-6...
#PlanetaryScience

#PlanetaryScience
#ToldYouSo

Canada wants your help to name its 1st moon rover Canada will soon roll a rover onto the moon, and you can help name the pioneering machine.

The Canadian Space Agency has launched a competition to name its first rover, set to explore the moon's south polar region. The mission aims to search for water sources, marking a significant step in Canada's lunar exploration efforts. - More on hype.aero

Enhanced color image shows exposed bedrock that has mineral diversity from other areas of the terrain. The ground if flat and there are very few dunes here. There are also several small rocky mounds. (NASA/JPL-Caltech/University of Arizona)

Clays in Ejecta

The science rationale for this request from HiWish is to image an area of mineralogic interest identified by CRISM (also onboard the Mars Reconnaissance Orbiter) that lacks HiRISE coverage.

uahirise.org/hipod/ESP_07...
NASA/JPL-Caltech/University of Arizona
#Mars #NASA

The lower right part of what looks like a ring made of reddish hydrogen with a hole in the middle.

After a month of bad weather, yesterday was a rare hour or so of partially clear sky, so I made the first tile for a Seestar S50 mosaic for the Rosette Nebula (Caldwell 49). This is 20 minutes' worth (before the clouds rushed in again). 1/ 🧪🔭

NASA once again delays astronaut moon landing, pushing to 2027 | CNN The Artemis program, which aims to return astronauts to the moon this decade amid a renewed international push for lunar exploration, is facing more delays.

New timeline for Artemis 👇🏻

www.cnn.com/2024/12/05/s...

#PlanetaryScience

NASA's James Webb Space Telescope (JWST) captured this image of the iconic Pillars of Creation, a small region filled with newly formed stars within the vast Eagle Nebula about 6,500 light-years away. Photograph by NASA, ESA, CSA, STScI Source: https://www.nationalgeographic.com/science/article/origins-of-the-universe

One of my favourite #planetaryScience conferences, which I only discovered in 2023, is the Gordon Conference on "Origins of Solar Systems." It brings together observers, theorists, cosmochemists, planetologists, and astronomers. The next one is in 2025! 🧪

Registration: www.grc.org/origins-of-s...

After much prodding, @science.org is now on Bluesky! Follow that account if you're interested in the latest news, opinion pieces and research papers, across all fields of science. 🧪

I'll continue posting Science content that's specifically relevant to #astronomy or #planetaryscience here. 🔭

Multiple Impact Sources for Light Plains Around the Lunar South Pole Forty-one light plain deposits in the lunar southern polar region are investigated for origin and absolute model age determination Schrödinger basin materials date to ∼3.8 Ga, Orientale materials...

Multiple Impact Sources for Light Plains Around the Lunar South Pole
#PlanetaryScience

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Image of the surface of the moon showing many craters. In the top left there is a rectangle with two zoom in boxes with successive zoom levels to one crater that has an elongated shape. In the center of that crater one can see the outlines of a rocket stage. Credit: NASA/GSFC/Arizona State University/R. Marschall Source: https://www.lroc.asu.edu/featured_sites/18/site_images/233

Not all craters are created equal! The S-IVB (the 3rd stage of the Saturn V) of the Apollo 13 mission impacted the surface of the Moon and made the crater below. The stage in the crater can still be seen.

#planetaryScience #SciComm🧪⚛️

Credit: NASA/GSFC/Arizona State University/R. Marschall

an orange cat is looking at you from around the corner. a christmas tree is just behind him, totally undisturbed

I was just LOOKING

Iridescence Reveals the Formation and Growth of Ice Aerosols in Martian Noctilucent Clouds Curiosity rover images reveal a previously unknown, visually spectacular cloud season in the Martian tropics during early southern autumn Iridescence in the noctilucent clouds requires a narrow p...

Just in time for this Mars year's twilight cloud season, here's a new paper led by Mark Lemmon about cloud iridescence we've seen at Gale. If you read none of it, at least admire the pretty pictures.
#planetaryscience
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

How long does it take to cook a #turkey on the #Moon? Or in other places in #space? USGS has some answers!

www.usgs.gov/centers/astr...

#PlanetaryScience #Astronomy #Thanksgiving

Three Ways to Track Venusquakes, from Balloons to Satellites - Eos The planet’s harsh conditions make studying seismicity challenging, but it is likely possible.

Venus is almost a twin of Earth, yet it has a crushing, boiling atmosphere at the surface and shows little active volcanism. Since Venus is so brutal, a researcher has proposed sending an orbiter/balloon/lander that could work together to track seismic signals rumbling under the planet's surface.

A screenshot of a student's term paper entitled "Gnawing Away at the Landscape: Beavers as Geomorphic Agents." The student's name is censored. Included also is a cover image of a young (yearling) brown beaver carrying a branch in its mouth and paw.

Never have I been more excited to read a student's term paper.

Image from the surface of Mars. In the foreground, a boulder field leads up to a small hill. In the far background, there is a slope with finer material.

I love this picture from the surface of #Mars. It's amazing, especially because there is a small helicopter in this frame! Can you find Ingenuity in this image taken by the Perseverance rover on April 14, 2023?

#planetaryScience #spaceExploration #SciComm 🧪🔭🚀🛰️
Credit: NASA/JPL-Caltech/ASU/MSSS

A view of the sky at night shows a bright green streak going from the top centre to the bottom centre. It's a meteoroid falling onto Earth.

Extraterrestrial material falls onto Earth often, but it's only recently that we find some of these rocks early enough to observe them before they impact Earth. This was the case for "2022 WJ1" shown in the image.

#planetaryScience 🔭🧪
Image Credit: Dereck Bowen, Canada, Nov 19, 2022 3:26am

Oh hello! Nice to meet you! If you ever come back down here come say hi 😃

India targets 2028 for Chandrayaan-4 sample-return mission to moon's south pole "All of us are excited to design and develop this complex mission and make it happen by 2028."

Planned for a 2028 launch, ISRO's Chandrayaan-4 will aim to return ~3 kg of samples from the #lunar South Pole

Can't wait to see what this mission will unfold

#PlanetaryScience #Astronomy #Space

www.space.com/the-universe...

Pillars of creation by JWST but with googly eyes

New #JWST image just dropped 🔭🐡🧪

Catch this ESA workshop through their livestream 👉🏻 hreworkshop-poland2024.eu/live-stream/

#PlanetaryScience #Astronomy #Cosmology #Space #Exploration

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Exciting times for India with 2 new #space exploration missions approved - A Venus Orbiter Mission, and Chandrayaan-4 which will be a lunar sample return mission

#PlanetaryScience #Astronomy #ISRO

www.isro.gov.in/UnionCabinet...