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Mars rovers serve as scientists’ eyes and ears from millions of miles away – here are the tools Perseverance used to spot a potential sign of ancient life
Mars rovers: NASA’s Perseverance rover recently identified potential signs of past life on Mars at a site called Bright Angel through mineral analysis. Using five advanced instruments, scientists interpreted complex data, but uncertainty remains. Future sample analysis on Earth may confirm these intriguing findings amid looming budget cuts impacting Mars exploration.
Mars rovers
Ari Koeppel, Dartmouth College
NASA’s search for evidence of past life on Mars just produced an exciting update. On Sept. 10, 2025, a team of scientists published a paper detailing the Perseverance rover’s investigation of a distinctive rock outcrop called Bright Angel on the edge of Mars’ Jezero Crater. This outcrop is notable for its light-toned rocks with striking mineral nodules and multicolored, leopard print-like splotches.
By combining data from five scientific instruments, the team determined that these nodules formed through processes that could have involved microorganisms. While this finding is not direct evidence of life, it’s a compelling discovery that planetary scientists hope to look into more closely.
To appreciate how discoveries like this one come about, it’s helpful to understand how scientists engage with rover data — that is, how planetary scientists like me use robots like Perseverance on Mars as extensions of our own senses.
Experiencing Mars through data
When you strap on a virtual reality headset, you suddenly lose your orientation to the immediate surroundings, and your awareness is transported by light and sound to a fabricated environment. For Mars scientists working on rover mission teams, something very similar occurs when rovers send back their daily downlinks of data.
Several developers, including MarsVR, Planetary Visor and Access Mars, have actually worked to build virtual Mars environments for viewing with a virtual reality headset. However, much of Mars scientists’ daily work instead involves analyzing numerical data visualized in graphs and plots. These datasets, produced by state-of-the-art sensors on Mars rovers, extend far beyond human vision and hearing. https://www.youtube.com/embed/Wz3Nzo09qko?wmode=transparent&start=1 A virtual Mars environment developed by Planetary Visor incorporates both 3D landscape data and rover instrument data as pop-up plots. Scientists typically access data without entering a virtual reality space. However, tools like this give the public a sense for how mission scientists experience their work.
Developing an intuition for interpreting these complex datasets takes years, if not entire careers. It is through this “mind-data connection” that scientists build mental models of Martian landscapes – models they then communicate to the world through scientific publications.
The robots’ tool kit: Sensors and instruments
Five primary instruments on Perseverance, aided by machine learning algorithms, helped describe the unusual rock formations at a site called Beaver Falls and the past they record.
Robotic hands: Mounted on the rover’s robotic arm are tools for blowing dust aside and abrading rock surfaces. These ensure the rover analyzes clean samples.
Cameras: Perseverance hosts 19 cameras for navigation, self-inspection and science. Five science-focused cameras played a key role in this study. These cameras captured details unseeable by human eyes, including magnified mineral textures and light in infrared wavelengths. Their images revealed that Bright Angel is a mudstone, a type of sedimentary rock formed from fine sediments deposited in water.
Spectrometers: Instruments such as SuperCam and SHERLOC – scanning habitable environments with Raman and luminescence for organics and chemicals – analyze how rocks reflect or emit light across a range of wavelengths. Think of this as taking hundreds of flash photographs of the same tiny spot, all in different “colors.” These datasets, called spectra, revealed signs of water integrated into mineral structures in the rock and traces of organic molecules: the basic building blocks of life.
Subsurface radar: RIMFAX, the radar imager for Mars subsurface experiment, uses radio waves to peer beneath Mars’ surface and map rock layers. At Beaver Falls, this showed the rocks were layered over other ancient terrains, likely due to the activity of a flowing river. Areas with persistently present water are better habitats for microbes than dry or intermittently wet locations.
X-ray chemistry: PIXL, the planetary instrument for X-ray lithochemistry, bombards rock surfaces with X-rays and observes how the rock glows or reflects them. This technique can tell researchers which elements and minerals the rock contains at a fine scale. PIXL revealed that the leopard-like spots found at Beaver Falls differed chemically from the surrounding rock. The spots resembled patterns on Earth formed by chemical reactions that are mediated by microbes underwater.
Together, these instruments produce a multifaceted picture of the Martian environment. Some datasets require significant processing, and refined machine learning algorithms help the mission teams turn that information into a more intuitive description of the Jezero Crater’s setting, past and present.
The challenge of uncertainty
Despite Perseverance’s remarkable tools and processing software, uncertainty remains in the results. Science, especially when conducted remotely on another planet, is rarely black and white. In this case, the chemical signatures and mineral formations at Beaver Falls are suggestive – but not conclusive – of past life on Mars.
There actually are tools, such as mass spectrometers, that can show definitively whether a rock sample contains evidence of biological activity. However, these instruments are currently too fragile, heavy and power-intensive for Mars missions.
Fortunately, Perseverance has collected and sealed rock core samples from Beaver Falls and other promising sites in Jezero Crater with the goal of sending them back to Earth. If the current Mars sample return plan can retrieve these samples, laboratories on Earth can scrutinize them far more thoroughly than the rover was able to.
Investing in our robotic senses
This discovery is a testament to decades of NASA’s sustained investment in Mars exploration and the work of engineering teams that developed these instruments. Yet these investments face an uncertain future.
The White House’s budget office recently proposed cutting 47% of NASA’s science funding. Such reductions could curtail ongoing missions, including Perseverance’s continued operations, which are targeted for a 23% cut, and jeopardize future plans such as the Mars sample return campaign, among many other missions.
Perseverance represents more than a machine. It is a proxy extending humanity’s senses across millions of miles to an alien world. These robotic explorers and the NASA science programs behind them are a key part of the United States’ collective quest to answer profound questions about the universe and life beyond Earth.
Ari Koeppel, Earth Sciences Postdoctoral Scientist and Adjunct Associate, Dartmouth College
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Entertain with Ease Using Fresh Fall Flavors
Fresh Fall Flavors: When seasonal celebrations start to fill up your calendar as you host friends and family, an appetizer that is delicious, yet simple, quickly moves from a new addition at the table to a tried-and-true shareable that guests look forward to year after year. This Baked Feta with Roasted California Grapes recipe delivers warm and rich flavors while being incredibly easy to prepare in a rush.
Entertain with Ease Using Fresh Fall Flavors
(Feature Impact) When seasonal celebrations start to fill up your calendar as you host friends and family, an appetizer that is delicious, yet simple, quickly moves from a new addition at the table to a tried-and-true shareable that guests look forward to year after year.
This Baked Feta with Roasted California Grapes recipe delivers warm and rich flavors while being incredibly easy to prepare in a rush. Juicy Grapes from California are roasted to deepen their sweet flavor then served over baked feta for a bite that is sweet, tangy and comforting.
Don’t forget: Grapes make an excellent healthy and fresh snack any time during the fall season, whether you need an after-school pick-me-up, a break between meetings or a quick on-the-go breakfast.
Fall into more flavorful recipe ideas at GrapesFromCalifornia.com.
Watch video to see how to make this recipe!
Baked Feta with Roasted California Grapes
Servings: 6
- 1 1/2 cups red and black seedless Grapes from California
- 1 tablespoon olive oil, plus additional for drizzling, divided
- 1-2 teaspoons balsamic vinegar
- 1 pound block feta
- 1-2 tablespoons fresh thyme
- 1 teaspoon dried oregano
- red pepper flakes, to taste
- crusty bread slices
- Heat oven to 400 F.
- In medium bowl, toss grapes with 1 tablespoon olive oil and balsamic vinegar to coat then place on baking tray. Roast 10-15 minutes, or until grapes just begin to soften. Remove from oven and let rest in pan 5 minutes.
- Slice block of feta into two thick slices and place in baking dish. Sprinkle with thyme, oregano and red pepper flakes, to taste, and drizzle with olive oil. Top with roasted grapes. Bake about 10 minutes, or until cheese has softened. Serve with crusty bread slices.
SOURCE:
California Table Grape Commission
For more recipe ideas, visit “FOOD & DRINK!“
(Feature Impact) Every year, approximately 200,000 service men and women transition from military life to corporate America. Finding the right civilian career is a transition, but it’s an opportunity to leverage military leadership and mission-driven talent.
Traditional hiring processes often focus on conventional resumes, but forward-thinking organizations recognize military experience as a competitive advantage in today’s workforce. The resilience, integrity and adaptability of America’s veterans and military families make them uniquely positioned to drive growth and innovation in their communities.
“Veterans bring unmatched discipline, adaptability and a results-driven mindset that directly translates to high-impact corporate careers,” said Drew Matheson, senior director at Capital One’s Commercial Bank and retired U.S. Army infantry officer. “While military experience doesn’t always fit perfectly on a traditional paper resume, employers like Capital One who know how to decode these unique leadership skills are able to unlock an incredible pipeline of proven performers.”
To help transitioning service members successfully navigate this career pivot, military community leaders at Capital One offer these five essential tips for service members entering the civilian workforce:
Start With What You’ve Already Earned
Opportunity starts with preparation. Beyond the well-known Post-9/11 GI Bill, which can cover tuition, housing and books, transitioning service members can look into vocational rehab or the SkillBridge program, which allows them to do civilian internships during the last 180 days of service. Many employers also offer internal tuition reimbursement programs. Taking the time to proactively map out these benefits ensures you aren’t leaving valuable opportunities or money on the table.
Find Employers with Veteran Support Structures
With almost half of veterans leaving their first post-military job within a year, according to research published by the Institute for Veterans and Military Families and VetAdvisor, finding the right culture and community is key to a successful transition. Look for employers with active veteran networks and dedicated mentorship.
For example, Capital One’s Salute Business Resource Group serves as a thriving internal community of more than 6,000 members, offering peer support, year-round professional development and mentorship for veterans, reservists and military spouses. Additionally, partner organizations like Hiring Our Heroes provide career workshops, fellowships and job fairs to ensure you’re employment-ready from day one.
Lean Into and Translate Your Soft Skills
Veterans bring a distinct competitive advantage to the applicant pool. You should confidently lean into the cross-functional “soft skills” learned in the line of duty such as risk management, crisis resolution and building trust under high-pressure scenarios.
The trick is translating these capabilities out of military jargon on your resume. Swap military terms like “NCOIC” for “Operations Manager” or “commanded” for “directed.” To make this easier, look for military-friendly employers that employ dedicated military recruiters who specialize in decoding military resumes to align skills with the right roles.
Prioritize Support for the Whole Family
Military service is a family commitment, and the transition out of uniform affects everyone. Military spouses often face unique career hurdles, including frequent relocations and employment gaps. When evaluating employers, look for companies that offer holistic benefits and flexible structures.
For example, Capital One, recognized by “U.S. Veterans Magazine” as a Top Veteran Employer and Top Military Spouse Employer, actively supports military spouses and families through dedicated spouse hiring initiatives and internal support mechanisms. Furthermore, look for organizations that support continued military training and active-duty leave, ensuring military associates never have to choose between their service and their careers.
Build Your Civilian Network Early
In the military, your network is built in. In the civilian world, you have to cultivate it. Long before your terminal leave begins, connect with veterans who work at companies you admire. Reach out for brief, 15-minute informational interviews to learn about their transition journeys rather than simply asking for a job. With more than 70% of civilian jobs filled through networking, according to estimates from Career Horizons, making organic connections early is a powerful tool for getting your foot in the door.
To find additional resources and learn more about how to support the hiring of veterans and military spouses, visit CapitalOneCareers.com/Military.
Photo courtesy of Shutterstock
SOURCE:
health and wellness
Zepbound Linked to Lower Healthcare Costs in Adults 55+ With Obesity, Real-World Study Suggests
A new real-world study of adults over age 55 with overweight or obesity found that sustained use of Zepbound (tirzepatide) for weight management was associated with lower healthcare costs over time compared with similar adults who were not treated. Eli Lilly and Company said the findings were driven in part by lower rates of hospital admissions and emergency department visits, and were published in Diabetes, Obesity and Metabolism.
What the study found
According to Lilly, researchers estimated healthcare cost differences over time (excluding the cost of Zepbound itself) using two established analytic methods. Across both approaches, monthly healthcare costs were lower, on average, among older adults who stayed on Zepbound.
Key estimates reported in the release include:
- At six months: costs were up to 15% lower (up to $181 per patient, per month).
- At 12 months: the estimated difference widened to as much as $607 per patient, per month, reflecting up to 38% lower costs than those not treated (estimates varied by model).
In the primary analysis, adults over 55 treated with Zepbound had lower rates of hospital admissions and emergency department visits across every follow-up period, along with numerically higher rates of routine outpatient and office visitsa pattern the company said was consistent with greater engagement in routine care.
Why Medicare is part of the conversation
Lilly said the cost findings may be relevant for older adults, including those in Medicares GLP-1 Bridge program. The company noted that beginning at six months, estimated healthcare savings nearly covered the programs monthly treatment cost of $195 per patient, per month, and by 12 months the estimated savings exceeded the reported monthly treatment cost.
Its important to note the release also emphasizes a limitation: claims data do not capture Zepbounds net price, and the study excluded the cost of Zepbound from total treatment costs. That means the reported differences reflect potential savings elsewhere in care that could offset treatment costs, not the full net cost impact.
Who was included in the analysis
The retrospective observational cohort study used Komodos Healthcare Map, a database of de-identified claims data from more than 330 million individuals enrolled in U.S. healthcare plans. The analysis included 15,843 adults over age 55 (mean age 64.5) with obesity or overweight plus at least one obesity-related complication who initiated Zepbound between November 2023 and September 2025. Each Zepbound user was matched 1:1 with a control participant who met the same eligibility criteria but did not initiate GLP-1 or GIP/GLP-1 receptor agonist medication.
What Zepbound is
Zepbound (tirzepatide) is a dual GIP and GLP-1 receptor agonist indicated for adults with obesity, or some adults with overweight who also have at least one weight-related medical problem, to lose weight and keep it off. Lilly also noted Zepbound is FDA-approved to treat adults with moderate-to-severe obstructive sleep apnea and obesity, and should be used alongside a reduced-calorie diet and increased physical activity.
Safety summary (high level)
The release includes an indications and safety summary with warnings. Among other risks, Lilly notes Zepbound carries a warning about thyroid tumors, including thyroid cancer, and may cause serious side effects such as severe stomach problems, dehydration leading to kidney problems, gallbladder problems, pancreatitis, serious allergic reactions, and low blood sugar (especially when used with certain diabetes medicines). Patients should talk with a healthcare provider about risks and whether the medication is appropriate for them.
Related Links
- Zepbound (official product site): https://zepbound.lilly.com/
- Lilly newsroom: https://www.lilly.com/news
- Journal page (publisher hub): https://dom-pubs.onlinelibrary.wiley.com/journal/14631326
- Medicare (official): https://www.medicare.gov/
- FDA MedWatch (side effect reporting): https://www.fda.gov/medwatch
Source
- PRNewswire / Eli Lilly and Company press release (Aug. 26, 2026): Zepbound linked to lower healthcare costs in adults over age 55 with obesity according to a real-world study
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