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IRAP News release dated 4 March 2025

Written by Lucy Lim, Planetary Scientist at NASA's Goddard Space Flight Center

Earth planning date: Friday, Feb. 28, 2025

Curiosity continues to climb roughly southward through the layered sulfate strata toward the “boxwork” features. Although the previous plan's drive successfully advanced the rover roughly 21 meters southward (about 69 feet), the drive had ended with an awkwardly perched wheel. Because of this, unfortunately it was considered too risky to unstow the arm for contact science in this plan.

Nevertheless the team made the most of the imaging and LIBS observations available from the rover's current location. A large Mastcam mosaic was planned on the nearby Texoli butte to capture its sedimentary structures from the rover’s new perspective. Toward the west, the boxwork strata exposed on “Gould Mesa” were observed using the ChemCam long-distance imaging capability, with Mastcam providing color context.

Several near-field Mastcam mosaics also captured some bedding and diagenetic structure in the nearby blocks as well as some modern aeolian troughs in the finer-grained material around them.

On the nearby blocks, two representative local blocks (“Gabrelino Trail” and “Sespe Creek”) are to be “zapped” with the ChemCam laser to give us LIBS (laser-induced breakdown spectroscopy) compositional measurements. The original Gabrelino Trail on Earth near the JPL campus is currently closed due to damage from the recent wildfires.

Meanwhile, the season on Mars (L_s ~ 50, or a solar longitude of about 50 degrees, heading into southern winter) has brought with it the opportunity to observe some recurring atmospheric phenomena: It's aphelion cloud belt season, as well as Hadley cell transition season, during which a more southerly air mass crosses over Gale Crater.

This plan includes an APXS atmospheric observation (no arm movement required!) to measure argon and a ChemCam passive-sky observation to measure O2, which is a small (less than 1%) but measurable component in the Martian atmosphere. Dedicated cloud altitude observations, a phase function sky survey, and zenith and suprahorizon movies have also been included in the plan to characterize the clouds. As usual, the rover also continues to monitor the modern environment with measurements of atmospheric opacity via imaging, temperature, and humidity with REMS, and the local neutron environment with DAN.

Rise and shine!

Firefly’s Blue Ghost lander captured its first sunrise on the Moon, marking the beginning of the lunar day and the start of surface operations in its new home. Our Ghost Riders have already begun operating many of the 10 NASA payloads aboard the lander and will continue operations over the next two weeks and into the lunar night.

Credits: Firefly Aerospace

Source: https://www.flickr.com/photos/fireflyspace/54362872324/in/dateposted/

Map -

Drive Data -

Astronomy Picture of the Day

There's a new lander on the Moon. Yesterday Firefly Aerospace's Blue Ghost executed the first-ever successful commercial lunar landing. During its planned 60-day mission, Blue Ghost will deploy several NASA-commissioned scientific instruments, including PlanetVac which captures lunar dust after creating a small whirlwind of gas. Blue Ghost will also host the telescope LEXI that captures X-ray images of the Earth's magnetosphere. LEXI data should enable a better understanding of how Earth's magnetic field protects the Earth from the Sun's wind and flares. Pictured, the shadow of the Blue Ghost lander is visible on the cratered lunar surface, while the glowing orb of the planet Earth hovers just over the horizon. Goals for future robotic Blue Ghost landers include supporting lunar astronauts in NASA's Artemis program, with Artemis III currently scheduled to land humans back on the Moon in 2027.

Full resolution image link

Image Credits: Firefly Aerospace.

The sample page link will be updated soon with the details of the 27th sample (they wait until it's sealed to update the list)

It is called "Green Gardens"

NASA's Mars Perseverance rover acquired this image using its SHERLOC WATSON camera, located on the turret at the end of the rover's robotic arm. The view is looking down at a flattened pile of tailings created by the coring of science target “Green Gardens,” so named because it contains serpentine, a mineral often green in color. The rover’s SHERLOC instrument (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals) uses cameras, spectrometers, and a laser to search for organics and minerals that have been altered by watery environments and may be signs of past microbial life; in addition to its black-and-white context camera, SHERLOC is assisted by WATSON (Wide Angle Topographic Sensor for Operations and eNgineering), a color camera for taking close-up images of rock grains and surface textures. Perseverance acquired this image on Feb. 20, 2025 — sol 1424, or Martian day 1,424 of the Mars 2020 mission — at the local mean solar time of 13:11:41. This photo was selected by public vote and featured as “Image of the Week” for Week 210 (Feb. 16-22, 2025) of the Perseverance rover mission on Mars. NASA/JPL-Caltech Written by Henry Manelski, Ph.D. student at Purdue University

The Perseverance team is always looking for creative ways to use the tools we have on Mars to maximize the science we do. On the arm of the rover sits the SHERLOC instrument, which specializes in detecting organic compounds and is crucial in our search for signs of past microbial life. But finding these organics isn’t easy. The uppermost surface of most rocks Perseverance finds on Mars have been exposed to ultraviolet rays from the sun and the long-term oxidative potential of the atmosphere, both of which have the potential to break down organic compounds. For this reason, obtaining SHERLOC measurements from a “fresh” rock face is ideal. Last week the rover cored a serpentine-rich rock aptly named “Green Gardens,” resulting in a fresh pile of drill tailings. To get this material ready for the SHERLOC instrument, which requires a smooth area to obtain a measurement, the science team did something for the first time on Mars: We smooshed it!

Using the contact sensor of our sampling system, designed to indicate when our drill is touching a rock as it prepares to take a core, Perseverance pressed down into the tailings pile, compacting it into a flat, stable patch for SHERLOC to investigate. This unorthodox approach worked perfectly! The resulting SHERLOC spectral scan of these fresh tailings — which include serpentine, a mineral of key astrobiological interest — was a success. These flattened drill tailings are a great example of how a bit of out-of-the-box (or out-of-this-world!) thinking helps us maximize science on Mars. With this success behind us, the rover is rolling west toward the heart of “Witch Hazel Hill,” where more ancient rocks — and who knows what surprises — await!

Curiosity continuing its traverse to the southwest.

Curiosity Rover - Sol 4464 L-MastCam Workspace Assembled in MS-ICE from 15 overlapping Bayer reconstructed frames Credits: NASA/JPL-Caltech/MSSS/fredk

Written by Susanne Schwenzer, Planetary Geologist at The Open University

Earth planning date: Wednesday, Feb. 26, 2025

The fine detail of the image above reminds us once again that geoscience — on Mars and on Earth — is an observational science. If you look at the image for a few moments, you will see that there are different areas made of different textures. You will also observe that some features appear to be more resistant to weathering than others, and as a consequence stand out from the surface or the rims of the block. Sedimentologists will study this and many other images in fine detail and compare them to similar images we have acquired along the most recent drive path. From that they put together a reconstruction of the environment billions of years in the past: Was it water or wind that laid down those rocks, and what happened next? Many of the knobbly textures might be from water-rock interaction that happened after the initial deposition of the material. We will see; the jury is out on what these details tell us, and we are looking closely at all those beautiful images and then will turn to the chemistry data to understand even more about those rocks.

In the caption of the image above it says “merged” images. This is an imaging process that happens aboard the rover — it takes two (or more) images of the same location on the same target, acquired at different focus positions, and merges them so a wider range of the rock is in focus. This is especially valuable on textures that have a high relief, such as the above shown example. The rover is quite clever, isn’t it?

In today’s plan MAHLI does not have such an elaborate task, but instead it is documenting the rock that the APXS instrument is measuring. The team decided that it is time for APXS to measure the regular bedrock again, because we are driving out of an area that is darker on the orbital image and into a lighter area. If you want, you can follow our progress on that orbital image. (But I am sure many of the regular readers of this blog know that!)

That bedrock target was named “Trippet Ranch.” ChemCam investigates the target “San Ysidro Trail,” which is a grayish-looking vein. As someone interested in water-rock interactions for my research, I always love plans that have the surrounding rock (the APXS target in this case) and the alteration features in the same location. This allows us to tease out which of the chemical components of the rock might have moved upon contact with water, and which ones have not.

As we are driving through very interesting terrain, with walls exposed on the mesas — especially Gould mesa — and lots of textures in the blocks around us, there are many Mastcam mosaics in today’s plan! The mosaics on “Lytle Creek,” “Round Valley,” “Heaton Flat,” “Los Liones,” and the single image on “Mount Pinos” all document this variety of structures, and another mosaic looks right at our workspace. It did not get a nice name as it is part of a series with a more descriptive name all called “trough.” We often do this to keep things together in logical order when it comes to imaging series. The long-distance RMIs in today’s plan are another example of this, as they are just called “Gould,” followed by the sol number they will be taken on — that’s 4466 — and a and b to distinguish the two from each other. Gould Mesa, the target of both of them, exposes many different structures and textures, and looking at such walls — geologists call them outcrops — lets us read the rock record like a history book! And it will get even better in the next few weeks as we are heading into a small canyon and will have walls on both sides. Lots of science to come in the next few downlinks, and lots of science on the ground already! I’d better get back to thinking about some of the data we have received recently, while the rover is busy exploring the ever-changing geology and mineralogy on the flanks of Mount Sharp.