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Curiosity Blog, Sols 4908-4912: Goodbye Campo Marte, It’s Been Fun!
2026-06-04 01:28
5 min read
Curiosity Blog, Sols 4908-4912: Goodbye Campo Marte, It’s Been Fun!
By Susanne P. Schwenzer, Professor of Planetary Mineralogy at The Open University, UK
Earth planning date: Friday, May 29, 2026
Drilling always keeps the rover in place for a little while, and our 47th successful drill, “Campo Marte,” was no exception. The team used the time wisely and on top of the drilling, we also have many observations. Thinking for a long time about a workspace always gets me attached to the area — some more than others; at the shorter stops, especially — when I am on shift several times during this time. I was Science Operations Working Group chair three times while we were here, so it’s a real “Goodbye” for me today as we are driving onward to reach the next area up the hill on Mount Sharp.
The Campo Marte drill was successful, as my colleague Abigail Fraeman reported last week. This week was spent investigating the aftermath of the drilling, which means running the CheMin instrument to get mineralogical data and the SAM instrument to inspect the volatile releases. ChemCam, APXS, MAHLI and Mastcam were also busy documenting the drill hole and the drill fines, as well as how much sample there was available overall.
Of course, Curiosity also had a very good look at the other interesting targets in the area! Besides all the work on the drill hole, ChemCam carried out an expert’s targeting exercise by setting two targets up to aim at two different layers on adjacent spots on the finely laminated sediments. That involves aiming at millimeter-sized targets, named “Corcovado” and “Junakas,” respectively, about 3 meters away (about 10 feet)! We are curious if the layers are chemically different, which would tell us about different formation conditions, or if they are similar and the conditions when those layers formed were more similar. ChemCam is also looking at the target “Palcaya” to get more data on the chemistry of the layered bedrock, and will investigate the target “Alcamachi,” which is a float rock that looks intriguingly dark. Maybe that tells us it’s got a different chemistry? We will find out when we get the data!
In addition to the chemistry measurements, ChemCam will also carry out a spectral investigation on the target “Magallanas,” which was a little too far away to also point the laser at it, but is intriguingly dark. This last week, ChemCam also planned three long-distance RMIs to document the sedimentary structures — younger and older ones — in the surrounding area. One of them drew the suspicion that it might break a record: it might be the longest strip of RMI images we have taken in one mosaic! The jury is out, it’s 24 frames and this way links up with an earlier, shorter set of images. The reason the mosaic is so long is because it images a small ridge with sedimentary textures that could tell us about the depositional conditions when the rock layers formed. But how cool is that — at 13+ years to still break our own records?
Since our arrival, Mastcam has been very busy getting the entire region around us imaged. In addition, some higher-resolution mosaics have been taken, most notably one of the locations where the remaining sample was dropped, and then of the workspace to see again how much sample might — or might not — have been left in the drill stem and fallen out when Curiosity did the motions that are designed to shake any remaining sample out of the drill, to leave it prepared for the next time. Another imaging task, but for MAHLI, is to always image the sample inlets, also, to see if they are clean and prepared for the next sample. I included the MAHLI image of the CheMin inlet — don’t worry about the little rock, it’s with us for a while, and the CheMin team now calls it “our pet rock.”
APXS joined the drill-hole investigations and has been focused on it even more than usual. The team decided that this is a very good opportunity to increase counting statistics beyond the usual and well-tested levels by significantly increasing the measurement time. To achieve that, it measured the Campo Marte drill fines in all plans of this week. And on the last night of that, MAHLI gets out its LED lights to finish the experiment with a sparkling nighttime MAHLI experiment to document it all.
Our environmental team has kept the rover busy by looking at atmospheric opacity, dust activity, dust-devil activity and, of course, also monitoring the environment in general. With all this finished, the rover will continue its way up the hill to the next interesting area. I heard something like “cross-bedding” during the discussions, but as a mineralogist, I just note that that decision was taken by people who know more about sediments than I do, while I am itching to see the CheMin mineralogy results!
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NASA Finds New Way Earth May Have Received Elements Needed for Life
2026-06-03 18:01
NASA Finds New Way Earth May Have Received Elements Needed for Life
Illustration: ESO
NASA-supported scientists have provided new information about how the early Earth may have acquired some elements necessary for the planet to become habitable. They also suggest a new role for Jupiter in the distribution of these elements throughout the young solar system. The study, published today in Science Advances, examines this history by looking at the ratio of phosphorus to nitrogen in iron meteorites and in younger objects known as chondrites.
The study suggests that Earth acquired its inventory of the life-essential elements phosphorous and nitrogen primarily from the inner solar system, without requiring a significant contribution from outer solar system chondrites
Debjeet Pathak
Rice University
Planetary system formation
Our solar system formed from gas and dust that swirled around the proto-Sun more than 4.5 billion years ago. This gas contained the raw materials needed to form planets, moons, and ultimately life as we know it. Two elements of particular importance for life are nitrogen and phosphorus.
In the earliest stages of the solar system, gas and dust coalesced into bodies known as planetesimals. As these objects orbited the young Sun in this chaotic environment, planetesimals collided, leaving shattered remnants throughout the system. Eventually, many of these pieces were incorporated into planets and moons. Other pieces survive today as asteroids, still orbiting the Sun, and – if they have impacted the Earth and been recovered – as meteorites. These meteorites provide a window into the early solar system at a time before the Earth existed. Chondrites and iron meteorites are two different classes of these meteorites.
As their name suggests, iron meteorites are dense, metallic objects and are primarily made of iron-nickel alloy. Chondrites, on the other hand, are stony objects and they are responsible for most of the meteorites that have been found on Earth.
Each type of meteorite originates from planetesimals that formed at different times in our system. The oldest generation of planetesimals are the source of iron meteorites. Chondrites came from a second generation of planetesimals that formed 2-3 million years later.
Habitable planet building
Understanding how the Earth was made and the timing of its formation is important for astrobiologists who study how and when our planet became habitable for life as we know it. The young Earth needed to have a supply of life’s ingredients, including nitrogen and phosphorus, for the first living cells to form.
There is debate between scientists over where Earth’s stock of life-essential elements came from. Some evidence points to chondrites in the outer solar system traveling inward to arrive at Earth late in our planet’s formation process. However, the new study tells a different story.
Using laboratory experiments and geochemical models, the team reconstructed a map of phosphorus-nitrogen (P/N) ratios across the early solar system and found differences between the first (iron meteorites) and second (chondrites) generations of planetesimals.
The experiments and subsequent geochemical modeling showed that the first generation had a higher ratio of P/N in the outer solar system, with that ratio decreasing toward the inner solar system. This trend was reversed in the second generation of planetesimals, with higher P/N ratios in the inner solar system.
The thought is that during the formation of the first generation of planetesimals, there was an outward flow of material that raised the P/N ratio in the outer solar system. Then came Jupiter.
For our own solar system, Jupiter’s presence and growth history, indeed, seem to have played a critical role in determining the distribution of the basic chemical ingredients necessary for habitable worlds.
Rajdeep Dasgupta
Rice University
As Jupiter formed and grew to a tremendous size (and gravitational influence), the planet restricted the movement of phosphorus and nitrogen from the inner to outer solar system. This meant that when the second generation of planetesimals appeared, those in the inner solar system were left with a higher P/N ratio than their cousins further out.
“For our own solar system, Jupiter’s presence and growth history, indeed, seem to have played a critical role in determining the distribution of the basic chemical ingredients necessary for habitable worlds,” said Rajdeep Dasgupta of Rice University in Houston and senior author on the study. “It remains an open question whether a life-essential element budget similar to Earth’s can be established without a Jupiter-like planet in the population.”
Geochemical accretion modeling further shows that Earth’s present-day P/N signature is best reproduced by the inner solar system planetesimals, either those related to iron meteorites or those related to chondrites.
“The study suggests that Earth acquired its inventory of the life-essential elements phosphorous and nitrogen primarily from the inner solar system, without requiring a significant contribution from outer solar system chondrites,” said study lead author Debjeet Pathak, graduate student at Rice University.
For more information on astrobiology at NASA, visit:
https://science.nasa.gov/astrobiology
Karen Fox / Molly Wasser
Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
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Aaron Gronstal
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International Sea Level Satellite Observes El Niño Precursor
2026-06-03 17:27
International Sea Level Satellite Observes El Niño Precursor
NASA/JPL-Caltech
Description
Sea level height data from the international Sentinel-6 Michael Freilich satellite collected from March to May 2026 show higher, warmer water moving from the western Pacific Ocean to just off the coast of Colombia, Ecuador, and Peru. This phenomenon is known as a warm Kelvin wave, signified in this animation of the data by yellow, orange, red, and white. The emergence of Kelvin waves in the early part the year is a signal that an El Niño event is likely to follow.
In early 2026, measurements from Sentinel-6 Michael Freilich showed a small Kelvin wave forming around Micronesia in late January and dissipating by mid-February. The wave shown in the animation emerged in early March, then moved east over time. By mid-May, the seas around Peru were more than 5.9 inches (15 centimeters) higher than long-term averages. Because water expands as it warms, a rise in elevation of an area of the ocean indicates increasing temperature.
The additional heat at the sea surface can change the circulation patterns of energy, water, and air in the atmosphere, which can affect weather. El Niños can cause heavy precipitation in some regions and deficits in others, influencing daily life and commerce around the world.
Sentinel-6 Michael Freilich, named after former NASA Earth Science Division Director Michael Freilich, is one of two satellites that compose the Copernicus Sentinel-6/Jason-CS (Continuity of Service) mission.
Sentinel-6/Jason-CS was jointly developed by ESA, the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), NASA, and NOAA, with funding support from the European Commission and technical support on performance from the French space agency CNES (Centre National d’Études Spatiales). Spacecraft monitoring and control, as well as the processing of all the altimeter science data, is carried out by EUMETSAT on behalf of the European Union’s Copernicus programme, with the support of all partner agencies.
A division of Caltech in Pasadena, NASA’s Jet Propulsion Laboratory contributed three science instruments for each Sentinel-6 satellite: the Advanced Microwave Radiometer, the Global Navigation Satellite System – Radio Occultation, and the Laser Retroreflector Array. NASA also contributed launch services, ground systems supporting operation of the NASA science instruments, the science data processors for two of these instruments, and support for the U.S. members of the international Ocean Surface Topography Science Team.
To learn more about Sentinel-6 Michael Freilich, visit:
Journey to the Center of the Virgo Cluster
2026-06-03 15:48
The focus of this NASA/ESA Hubble Space Telescope image released on May 29, 2026, is an active spiral galaxy on a journey lasting hundreds of millions of years. The galaxy Messier 88 (M88), also known as NGC 4501, is located about 63 million light-years away in the constellation Coma Berenices (Berenice’s Hair).
M88 is an active galaxy, which means that its center harbors a supermassive black hole that is snacking on gas and dust. Astronomers estimate the black hole is around 100 million times as massive as the Sun, and it appears to be powering outflows of gas from the galaxy’s center.
Image credit: ESA/Hubble & NASA, D. Thilker
NASA Drains 66-Million-Gallon Reservoir to Upgrade Critical Water System
2026-06-03 13:50
A powerful but mostly unseen water system at work during rocket engine tests at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, underwent an upgrade in May.
Crews brought the High Pressure Industrial Water Facility’s 66-million-gallon reservoir to its lowest level since construction in the 1960s by pumping out about 40 million gallons of water over three days.
This brought the reservoir, measuring 800 feet in diameter and about 25 feet deep, down to the level needed to replace a 3,000 gallon per minute pump that supplies water for fire suppression to the test complexes.
Before and After
Lowering the Reservoir
May 7, 2026 – May 11, 2026
For a typical RS-25 engine test supporting NASA’s Artemis missions, about five million gallons of water flow from the reservoir to the Fred Haise Test Stand. The water cools the engine exhaust that reaches up to 6,000 degrees Fahrenheit, supplies water to the flame deflector and helps with sound suppression during a test.
A hot fire test produces critical data to ensure an engine is safe and reliable.
Before and After
A View from the Thad Cochran Test Stand
May 7, 2026 – May 11, 2026
The water used during a test is recycled for future use as it flows back into the on-site canal system, before returning to the reservoir.
“The old pump that supported fire suppression for testing reached its end of life, so this project promotes reliability with the upgrade,” said Justin Lucas, NASA project manager.
In addition to a new pump, the piping has improved to a 14-inch-to-12-inch configuration.
Picture trying to drink water from a big cup using a tiny coffee stirrer. This is similar to how the previous pump relied on piping that narrowed from 14 inches down to 10 inches before reaching the pump. The water moved but required more work from the system.
“With the upgraded configuration, less velocity inside the pipe with the same amount of flow equals a longer lasting pipe, pump, and hardware,” said Lucas.
The water system upgrades have strengthened a vital system that supports NASA’s Artemis missions, along with commercial companies operating at NASA Stennis, home to America’s largest multiuser propulsion test site.
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