Mars Special: Beneath planet's surface, Ancient Rainfall and CHAMPS Mission

In the ongoing search to uncover the mysteries of Mars, a significant leap forward has come from the Jaesaro Crater, the landing site of NASA's Perseverance Rover. A study led by an international team of scientists, including doctor Michael Tice from Texas and m University, has illuminated new aspects of the Martian surface. By closely analyzing rock samples from the crater floor, the researchers have begun to piece together the

volcanic and geological past of this ancient terrain. The discoveries point to a planet with a complex and active history, one that may have included the conditions necessary to support microbial life. The Jaesaro Crater was chosen for the Mars twenty twenty mission with purpose. Once home to a river delta, it is one of the most promising locations for finding

preserved signs of life. When Perseverance landed on February eighteen, twenty twenty one, it carried with it a suite of scientific instruments capable of conducting geological studies in remarkable detail. Unlike previous rovers, which were limited to visual documentation and basic compositional data, Perseverance operates more like a mobile laboratory.

One of its most important tools, the Planetary Instrument for X Ray Litho Chemistry PixL, is an advanced spectrometer that reveals the chemical makeup of rocky with a level of precision previously unattainable on another planet. With PixL, the team focused on rocks in the Moss Formation, a key region within the crater. What they found was more than just stones, It was a record of Mars's geological story. Two primary

types of volcanic rock emerged from their analysis. The first was a dark rock enriched in iron and magnesium, containing intergrown minerals like pyroxene and feldspar, along with signs of olivine that had undergone alteration. The second type was a lighter, potassium rich trachyanzite containing feldspar crystals suspended in a volcanic ground mass. These diverse compositions point to multiple volcanic episodes, with each lava flow cooling under slightly different conditions, leaving

distinct chemical fingerprints behind. To understand how these rocks formed, the researchers applied thermodynamic modeling, simulating the cooling in crystallization processes that would have shaped them. Their findings suggest that the rocks underwent a process known as high degree fractional crystallization, where minerals crystallize out of molten lava at different stages,

changing the composition of the remaining liquid. In some instances, the lava also appears to have assimilated iron rich material from the Martian crust. This interaction between molten rock and crustal materials further complicated the geochemical makeup of the rocks, mirroring processes that occur in Earth's volcanic systems. What makes this significant is not only the insight into Mars's volcanic history, but also what it implies about the planet's capacity to

sustain life. On Earth, prolonged volcanic activity is often accompanied by hydrothermal systems, which can create environments rich in chemical energy, environments in which microbial life can thrive. The presence of similar volcanic price processes on Mars raises the possibility that early Mars had regions where life could have gained a foothold. It is not just about the rocks themselves, but the stories they tell about ancient heat, chemistry, and water. These findings, however,

are just the beginning. Perseverance is collecting core samples of these Martian rocks and storing them in sealed tubes for potential return to Earth through a future mission jointly planned by NASA and the European Space Agency. Once these samples are brought back, scientists will be able to use Earth based laboratories to probe their structure, chemistry, and potential biosignatures

with even greater depth. While the rover provides an extraordinary level of incitu analysis, it is still just a glimpse of what full laboratory analysis will reveal. Doctor Tyss and his colleagues believe the technology aboard Perseverance is revolutionizing planetary science. The ability to examine texture and chemical data at such a microscopic level on another planet is something that was unimaginable only a few decades ago. Each sample, each mineral,

each unusual feature, brings new data and new questions. Mars is no longer a silent and static world. It is a complex geological landscape, layered with history and shaped by forces not so different from those found on Earth. The discoveries in the Jazaro Crater serve as a reminder that the universe still holds countless stories waiting to be uncovered. The Martian surface, once thought to be barren and unchanging, reveals itself as a record of ancient processes that could

have mirrored the early Earth. As scientists continue to decode these ancient rocks, what we learn about Mars may not only inform us about a neighboring planet, but about the origins of our own. The rover's journey has just begun, and with it, the story of Mars is being written anew one sample at a time when Mars had rivers. Mars today, as captured by satellite images, still shows clear

signs of an ancient watery past near the equator. Networks of channels stretch out from the highlands of the planet, branching in a way that resembles tree limbs and terminating in basins that were once lakes or even possibly an ocean. NASA's Perseverance Rover, which touched down in twenty twenty one, is currently investigating Jazaro Crater, a location that was once

the site of an ancient lake. In the distant Martian era known as the Nuekian, a powerful river flowed into Jazaro, depositing sediment and forming a delta across the crater floor. The sheer size of the boulders deposited there suggests the river once carried water several meters deep. These features spark the curiosity of scientists like Brian Heinek and Tyler Steckel, who set out to better understand the forces that shaped

this terrain. Together, Heinek and Steckel developed a digital reconstruction of a section of Mars. To do this, they relied on a model originally built for studying Earth's geology created by Gregory Tucker, and adapted it from Martian conditions. Their team also included Matthew Rossi, another researcher at SU Boulder. They used this modeling software to simulate how the Martian landscape might have evolved, especially in regions near the equator.

The simulations introduced water into this synthetic terrain in two main ways, either through falling precipitation or via melting polar ice caps, and let the water flow across the landscape over time spans ranging from tens of thousands to hundreds of thousands of years. These simulations revealed two very different

versions of the Red planet. When ice caps melted in the simulation, the resulting valleys and channels primarily began forming at high elevations near the edges of the former ice, but when water came from widespread precipitation, the valleys formed across a much broader range of altitudes, from low lying areas to regions over eleven thousand feet above Mars average surface level. The way these valleys emerged varied significantly depending

on the water source. Water from melting ice produced narrow bands of erosion at specific heights, while rainfall allowed channels to form almost anywhere. These simulated landscapes were then compared to real data from Mars collected by NASA's Mars Global Surveyor and Mars Odyssey missions. The comparison showed that the simulations based on precipitation matched much more closely with the

actual distribution of Martian valley systems. Although these findings do not definitively solve the mystery of mars ancient climate, particularly how the planet was ever warm enough to support rainfall or snowfall, they do suggest that some form of precipitation likely shaped much of the Martian surface. For Heinek, the

implications extend beyond Mars itself. He believes that once flowing water ceased carving through the Martian terrain, the planet entered a kind of suspended state, preserving surface features that may reflect what Earth looked like billions of years ago. Champs

delivering small payloads to Mars. NASA's goal of sending humans to Mars by the end of the next decade under its Moon to Mars program has sparked a wide array of technological developments, including a focus on cutting edge propulsion systems that will reduce the time it takes to get there. The reduced transit time is crucial not only for speeding up missions, but also for minimizing astronauts exposure to hazardous

cosmic radiation and the effects of prolonged weightlessness. In addition to propulsion, NASA is exploring ways to improve waste elimination, water recycling, cruise safety, and overall mission self sufficiency, aiming to make deep space travel more sustainable and cost effective. A crucial part of this effort involves the advancement of sub kilowatt electric propulsion systems tailored for small spacecraft laying

around five hundred kilograms or less. These propulsion systems, particularly the electrostatic hall effect thrusters that use solar energy to ionize inner gases like Xenon, have already demonstrated their potential through previous programs such as the Planetary Science, Deep Space

Small SAT Studies and Simplex. Drawing from that foundational research, a new concept called CHAMPS, short for Commercial Hall Propulsion from Mars Payload Services has emerged, developed by a team of NASA engineers and scientists from centers like the Glen Research Center and Goddard Space Flight Center. This initiative proposes using compact, high efficiency electric thrusters to send small science payloads to Mars at lower costs and on more flexible schedules.

Than ever before. The central propulsion system proposed for Champs is based on the H seventy one m thruster, a miniaturized, high performance version of larger solar electric propulsion systems capable of pushing a nearly four hundred and fifty kilogram spacecraft while consuming a relatively small amount of propellant. This technology has been adopted and developed commercially through Northwrook Grumman's NNGHT one x thruster, which the Champs missions would employ instead

of relying on rare and expensive launch opportunities. Were Mars is the primary target, CHAMPS missions would launch as secondary payloads on flights originally intended for the Moon, such as those under the Commercial Lunar Payload Services Program. Once launched, the spacecraft would perform a gravity assist maneuver around the

Moon and temporarily enter a near rectilinear halo orbit. This maneuver not only concerts fuel but buys time until a favorable Earth Mars alignment presents it it, allowing for an efficient trajectory toward the red planet. The mission plan includes a series of low thrust maneuvers and cruising phases spanning

more than a year before the spacecraft reaches Mars. Upon arrival, it will enter a low orbit just fifteen kilometers above the surface, enabling complete coverage of the Martian equator every five souls. In addition to observing the planet, the spacecraft will study dymos, one of Mars to moons. After its two year primary mission, the craft will shift to a higher orbit called aerosynchronous that enables it to maintain continuous atmospheric observation and act as a data relay for other

surface missions. The scientific payload for CHAMPS includes instruments modeled after those already used in Martian exploration, such as visible and ultraviolet imagers, thermal infrared radiometers, and near infrared spectrometers. With this suite, CHAMPS will build detailed profiles of atmospheric pressure, temperature, aerosol content, and chemical composition, including water, vapor, and ozone.

It will also track dust storms, cloud patterns, and weather changes across seasons, while probing plasma conditions and magnetic fields influenced by solar activity. These observations will help scientists answer unresolved questions about Mars atmospheric behavior, the transfer of volatile compounds between its surface and skies and how solar radiation affects its climate. On both global and regional scales. The mission aims to reveal the dynamic interactions among atmospheric layers

and deepen our understanding of how weather operates on the planet. Importantly, the Champ's concept also supports NASA's broader Mars Exploration program, which emphasizes frequent, affordable missions to adapt quickly to new discoveries and engage a wider scientific community. This model not only only reduces costs and improves mission flexibility, but also aligns with the agency's strategy to democratize access to planetary science and ensure that Mars exploration continues with momentum and

scientific rigor well into the future. The d