From groundbreaking energy leaders to growing space startups, here's who secured funding in the last six months of 2025. Photo via Getty Images

Houston startups closed out the last half of 2025 with major funding news.

Here are 14 Houston companies—from groundbreaking energy leaders to growing space startups—that secured funding in the last six months of the year, according to reporting by InnovationMap and our sister site, EnergyCapitalHTX.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com.

Fervo Energy

Fervo Energy has closed an oversubscribed Series E. Photo via Fervo Energy

Houston-based geothermal energy company Fervo Energy closed an oversubscribed $462 million series E funding round, led by new investor B Capital, in December.

The company also secured $205.6 million from three sources in June.

“Fervo is setting the pace for the next era of clean, affordable, and reliable power in the U.S.,” Jeff Johnson, general partner at B Capital, said in a news release.

The funding will support the continued buildout of Fervo’s Utah-based Cape Station development, which is slated to start delivering 100 MW of clean power to the grid beginning in 2026. Cape Station is expected to be the world's largest next-generation geothermal development, according to Fervo. The development of several other projects will also be included in the new round of funding. Continue reading.

Square Robot

Houston robotics co. unveils new robot that can handle extreme temperatures

Square Robot's technology eliminates the need for humans to enter dangerous and toxic environments. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc. announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC) last month.

The partnership came with an undisclosed amount of funding from Marathon, which Square Robot says will help "shape the design and development" of its submersible robotics platform and scale its fleet for nationwide tank inspections. Continue reading.

Eclipse Energy

Eclipse Energy and Weatherford International are expected to launch joint projects early this year. Photo courtesy of Eclipse Energy.

Oil and gas giant Weatherford International (NASDAQ: WFRD) made a capital investment for an undisclosed amount in Eclipse Energy in December as part of a collaborative partnership aimed at scaling and commercializing Eclipse's clean fuel technology.

According to a release, joint projects from the two Houston-based companies are expected to launch as soon as this month. The partnership aims to leverage Weatherford's global operations with Eclipse Energy's pioneering subsurface biotechnology that converts end-of-life oil fields into low-cost, sustainable hydrogen sources. Continue reading.

Venus Aerospace 

Lockheed Martin Ventures says it's committed to helping Houston-based Venus Aerospace scale its technology. Photo courtesy Venus Aerospace

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount, the company announced in November. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses. Continue reading.

Koda Health

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston-based digital advance care planning company Koda Health closed an oversubscribed $7 million series A funding round in October.

The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success, according to a news release.

The company shared that the series A "marks a pivotal moment," as it has secured investments from influential leaders in the healthcare and venture capital space. Continue reading.

Hertha Metals

U.S. Rep. Morgan Luttrell, a Magnolia Republican, and Hertha Metals founder and CEO Laureen Meroueh toured Hertha’s Conroe plant in August. Photo courtesy Hertha Metals/Business Wire.

Conroe-based Hertha Metals, a producer of substantial steel, hauled in more than $17 million in venture capital from Khosla Ventures, Breakthrough Energy Fellows, Pear VC, Clean Energy Ventures and other investors.

The money was put toward the construction and the launch of its 1-metric-ton-per-day pilot plant in Conroe, where its breakthrough in steelmaking has been undergoing tests. The company uses a single-step process that it claims is cheaper, more energy-efficient and equally as scalable as conventional steelmaking methods. The plant is fueled by natural gas or hydrogen.

The company, founded in 2022, plans to break ground early this year on a new plant. The facility will be able to produce more than 9,000 metric tons of steel per year. Continue reading.

Helix Earth Technologies, Resilitix Intelligence and Fluxworks Inc.

Helix Earth's technology is estimated to save up to half of the net energy used in commercial air conditioning, reducing both emissions and costs for operators. Photo via Getty Images

Houston-based Helix Earth Technologies, Resilitix Intelligence and Fluxworks Inc. each secured $1.2 million in federal funding through the Small Business Innovation Research (SBIR) Phase II grant program this fall.

The three grants from the National Scienve foundation officially rolled out in early September 2025 and are expected to run through August 2027, according to the NSF. The SBIR Phase II grants support in-depth research and development of ideas that showed potential for commercialization after receiving Phase I grants from government agencies.

However, congressional authority for the program, often called "America's seed fund," expired on Sept. 30, 2025, and has stalled since the recent government shutdown. Continue reading.

Solidec Inc. (pre-seed)

7 innovative startups that are leading the energy transition in Houston

Houston-based Solidec was founded around innovations developed by Rice University associate professor Haotian Wang (far left). Photo courtesy Greentown Labs.

Solidec, a Houston startup that specializes in manufacturing “clean” chemicals, raised more than $2 million in pre-seed funding in August.

Houston-based New Climate Ventures led the oversubscribed pre-seed round, with participation from Plug and Play Ventures, Ecosphere Ventures, the Collaborative Fund, Safar Partners, Echo River Capital and Semilla Climate Capital, among other investors. Continue reading.

Molecule

Sameer Soleja is the founder and CEO of Molecule, which just closed its series B round. Photo courtesy of Molecule Software.

Houston-based energy trading risk management (ETRM) software company Molecule completed a successful series B round for an undisclosed amount, according to a July 16 release from the company.

The raise was led by Sundance Growth, a California-based software growth equity firm. Sameer Soleja, founder and CEO of Molecule, said in the release that the funding will allow the company to "double down on product innovation, grow our team, and reach even more markets." Continue reading.

Rarefied Studios, Solidec Inc. and Affekta

Houston startups were named among the nearly 300 recipients that received a portion of $44.85 million from NASA to develop space technology this fall. Photo via NASA/Ben Smegelsky

Houston-based Rarefied Studios, Solidec Inc. and Affekta were granted awards from NASA this summer to develop new technologies for the space agency.

The companies are among nearly 300 recipients that received a total agency investment of $44.85 million through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Phase I grant programs, according to NASA.

Each selected company received $150,000 and, based on their progress, will be eligible to submit proposals for up to $850,000 in Phase II funding to develop prototypes. The SBIR program lasts for six months and contracts small businesses. Continue reading.

Intuitive Machines 

Intuitive Machines expects to begin manufacturing and flight integration on its orbital transfer vehicle as soon as 2026. Photo courtesy Intuitive Machines.

Houston-based Intuitive Machines secured a $9.8 million Phase II government contract for its orbital transfer vehicle in July.

The contract was expected to push the project through its Critical Design Review phase, which is the final engineering milestone before manufacturing can begin, according to a news release from the company. Intuitive Machines reported that it expected to begin manufacturing and flight integration for its orbital transfer vehicle as soon as this year, once the design review is completed.

The non-NASA contract is for an undisclosed government customer, which Intuitive Machines says reinforces its "strategic move to diversify its customer base and deliver orbital capabilities that span commercial, civil, and national security space operations." Continue reading.

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston digital health platform Koda closes $7 million funding round

fresh funding

Houston-based digital advance care planning company Koda Health has closed an oversubscribed $7 million series A funding round.

The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success, according to a news release.

“This funding allows us to create more goals-of-care product lines, expand our national footprint, and bring goal-concordant care to millions more patients and families," Tatiana Fofanova, co-founder and CEO of Koda Health, said in the release.

Koda Health, which was born out of the TMC's Biodesign Fellowship in 2020, has seen major growth this year and said it now supports more than 1 million patients nationwide. The company integrated its end-of-life care planning platform with Dallas-based Guidehealth in April and with Epic Systems in July. Users of Epic's popular Mychart system and Guidehealth's clinically integrated networks can now document and share their care preferences, goals and advance directives for health systems using Koda Health's platform. It also has partnerships with Cigna, Privia and Memorial Hermann.

The company shared that the recent series A "marks a pivotal moment," as it has secured investments from influential leaders in the healthcare and venture capital space.

“Koda is the only company combining technology and service to deliver comprehensive solutions that help health plans, providers, and health systems scale goals-aligned care. With satisfied customers expanding their partnerships and policy shifts reinforcing the need for patient-centered care that also contains costs, we couldn’t be more excited to support the Koda team and their vision,” Sean Glass, managing partner at Evidenced, said in the release.

According to the company, a recent peer-reviewed study with Houston Methodist ACO showed that the platform can have a major impact on palliative care results and costs. The findings showed:

  • 79 percent reduction in terminal hospitalizations
  • 20 percent decrease in inpatient length of stay
  • 51 percent increase in hospice use among decedents
  • Nearly $9,000 in average savings per patient

“Patients long for clarity, families deserve peace of mind, and providers demand ease of use,” Dr. Desh Mohan, chief medical officer of Koda Health, added in the release. “At Koda, we make it possible to deliver all three — transforming Advance Care Planning into a compassionate, ongoing dialogue that honors patients and supports families every step of the way.”

Koda Health also closed an oversubscribed seed round for an undisclosed amount last year, with investments from AARP, Memorial Hermann Health System and the Texas Medical Center Venture Fund. Read more here.

ChurchSpace, founded in Houston by Day Edwards and Emmanuel Brown, is moving to Detroit. Photo courtesy ChurchSpace.

Houston-founded startup raises $1.2M and moves headquarters to Detroit

moving forward

Houston-founded ChurchSpace, known as the Airbnb for churches, has formed an official partnership with the City of Detroit and will relocate its headquarters.

The announcements come as the company successfully closed a $1.2 million oversubscribed funding round. The round was led by California-based Black Ops Ventures, with participation from Michigan Rise and Dug Song of Minor Capital, who is also the founder of the Song Foundation, another Michigan-based organization.

"This raise is more than a business milestone—it's a testament to what happens when strategy meets faith. In today's climate, raising capital takes grit and resilience—especially without deep networks or traditional access. By God's grace, doors have opened, and our mission is clearer than ever. Now, with capital in hand, we're building boldly toward a future where the Church isn't just surviving—but leading community transformation," Emmanuel Brown, co-founder and CEO of ChurchSpace, said in a statement.

In Detroit, ChurchSpace plans to activate underutilized church campuses as micro-logistics spaces for food distribution and retail partnerships, as well as last-mile delivery centers. To kick off its relocation, ChurchSpace will host a Detroit Pastor Meetup on July 19.

"We welcome ChurchSpace's investment in Detroit and the jobs and innovation it will bring," Detroit Mayor Mike Duggan added in the release. "Our faith community has long been a critical backbone of our neighborhoods. Through ChurchSpace's groundbreaking work, they will continue to be anchors of opportunity and resilience in our city's future."

ChurchSpace was originally founded to convert underutilized church real estate into event, meeting and commercial kitchen space to boost revenue and relieve financial burden while remaining compliant with IRS regulations for non-profits. The company participated in the inaugural cohort of the AWS Impact Accelerator for Black Founders, which included a pre-seed fundraising campaign and a $125,000 equity injection from Amazon in 2022. It was also one of two Houston companies to receive $100,000 as part of the Google for Startups Black Founders Fund that same year.

The company reports that its platform in Texas has generated up to $100,000 annually in new revenue that was reinvested into church ministries, food programs and community initiatives.

"What we built in Houston was more than technology—it was transformation. We expanded our purpose and packaged proven strategies to help churches thrive, transform communities, and even combat food insecurity," Day Edwards, co-founder and president of ChurchSpace, added in the statement. "Now, with prayer and the support of our team and investors, we're bringing that same impact to Detroit—to help churches, communities, and small businesses redefine pulpits and rediscover communal possibilities."

Houston- and Seattle-based Indapta Therapeutics has fresh funding to grow its cancer-fighting cell therapy. Photo via Getty Images

Houston startup secures $22.5M to innovate cell therapy to fight cancer

fresh funding

A promising cell therapy company has raised its latest funding round — to the tune of $22.5 million.

Indapta Therapeutics, which has a dual headquarters in Houston and Seattle, is a clinical stage biotechnology and next-generation cell therapy company focused on the treatment of cancer and autoimmune diseases. The company announced it has closed a $22.5 million round of new financing to accelerate the clinical development of its differentiated allogeneic Natural Killer cell therapy.

"This funding will enable us to generate significant additional data in our ongoing trial of IDP-023 in cancer as well as initial data from our first trial in autoimmune disease," Mark Frohlich, Indapta’s CEO, says in a news release.

Indapta has completed enrollment in the safety run-in portion of the Phase 1 clinical trial of IDP-023 in Non-Hodgkin’s Lymphoma and Multiple Myeloma, according to the company. The patients received up to three doses of IDP-023 without and with interleukin (IL)-2.

Completing the round were current investors RA Capital Management, Bayer's impact investment arm Leaps, Vertex Ventures HC, Pontifax, and the Myeloma Investment Fund, the venture philanthropy subsidiary of the Multiple Myeloma Research Foundation. Earlier in December, Indapta announced a collaboration with Sanofi to explore the combination of its allogeneic g-NK cell therapy IDP-023 with Sanofi’s CD38 that targets the monoclonal antibody, Sarclisa (isatuximab).

"Preliminary results of IDP-023 in cancer are encouraging and we look forward to initiating our Phase 1 trial for multiple sclerosis in Q1 2025,” Frohlich continues. “This financing, together with our recently announced collaboration with Sanofi, highlights the promise of our differentiated platform.”

Also in August, Indapta announced a FDA clearance of its IND of IDP-023 in combination with ocrelizumab in progressive MS.


Mark Frohlich is the CEO of the Houston- and Seattle-based company. Photo courtesy of Indapta Therapeutics

Houston-based Citroniq Chemicals has secured its series A funding. Photo via Getty Images

Houston company secures $12M series A for decarbonization plant

money moves

A fresh $12 million round of funding will enable Houston-based Citroniq Chemicals to propel planning, design, and construction of its first decarbonization plant.

An unidentified multinational energy technology company led the series A round, with participation from Houston-based Lummus Technology Ventures and cooperation from the State of Nebraska. The Citroniq plant, which will produce green polypropylene, will be located in Nebraska.

“Lummus’ latest investment in Citroniq builds on this progress and strengthens our partnership, working together to lower carbon emissions in the plastics industry,” Leon de Bruyn, president and CEO of Lummus Technology, says in a news release.

Citroniq is putting together a decarbonization platform designed to annually capture 2 million metric tons of greenhouse gas emissions at each plant. The company plans to invest more than $5 billion into its green polypropylene plants. Polypropylene is a thermoplastic resin commonly used for injection molding.

The series A round “is just the first step in our journey towards building multiple biomanufacturing hubs, boosting the Nebraska bioeconomy by converting local ethanol into valuable bioplastics,” says Kelly Knopp, co-founder and CEO of Citroniq.

Citroniq’s platform for the chemical and plastics industries uses technology and U.S.-produced ethanol to enable low-cost carbon capture. Citroniq’s process permanently sequesters carbon into a useful plastic pellet.

Lummus Technology licenses process technologies for clean fuels, renewables, petrochemicals, polymers, gas processing and supply lifecycle services, catalysts, proprietary equipment, and digital transformation.

Geothermal investment is up, but health tech is down — plus more data-backed VC trend from 2024 so far. Photo via Getty Images

Report: Houston's VC trends so far in 2024 and what to watch for the rest of the year

by the numbers

Houston-based geothermal company Fervo Energy accounted for more than half of the venture capital raised by Houston-area startups in the first quarter of 2024.

The region’s VC haul in the first quarter totaled $462.4 million, according to the PitchBook-NCVA Venture Monitor. That’s up from $290.4 million during the same period in 2023 and from $285.8 million in the fourth quarter of last year. Click here to see the Q1 rounds as reported by InnovationMap.

Fervo’s latest funding round, announced in February, represented $244 million (52 percent) of the region’s VC total for the first quarter of 2024.

A report released in March by PitchBook indicated that VC funding last year for geothermal power reached $431 million across 21 deals. As of late February 25 — four days ahead of the Fervo announcement — $165.5 million in VC funding had been pumped into the geothermal sector this year, according to PitchBook.

“The recent VC deal activity with the geothermal power sector underscores a vibrant and evolving market, but still one that garners far less VC than other renewables,” says the report.

In all, Houston-area startups made 38 VC deals in this year’s first quarter, the PitchBook-NVCA Venture Monitor says. That’s down from 42 in the fourth quarter of 2023 and 43 in the first quarter of 2023. Nationwide, the deal count fell sharply in the first quarter of 2024 vs. the first and fourth quarters of last year.

The PitchBook-NVCA Venture Monitor report shows that nationwide, the $36.6 billion in VC investments recorded during the first quarter of 2024 “remained relatively on pace with the past year.”

“However, it would be a mistake to hyperfocus on the results of a single quarter whose results were a bit farther left on the bell curve than usual. The venture capital … business cycle effectively reset in recent years, and as of early 2024, it still appears to be searching for its level,” says the report.

“It is too early to tell where 2024 is going, but the game is on, and America’s VCs are ready for it,” the report adds. “In 2022, our world changed; in 2023, we accepted it was not changing back; and in 2024, we are building what is next.”

In a bit of good news for the Houston area, the report cites cleantech/energy as one of two sectors that venture capitalists should not overlook. The other sector: cybersecurity.

But in a bit of not-so-good news for the region, the report notes a slowdown in VC deals in the healthcare sector over the past two years in the wake of “pandemic-fueled capital exuberance.”

“Yet the healthcare sector differentiates itself from the rest of the market by demonstrating many unmet needs that could have a profound impact on society, particularly around disease diagnosis and treatment,” the report goes on to say. “On top of the immense opportunity set for disruption within healthcare, investor enthusiasm around AI adoption in drug development further speaks to the demand for better solutions in biotech through groundbreaking innovations.”

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Uber rolls out women-only ride preferences to Houston users

Women Preferences

Houston women riders and drivers can now be matched to other women on the Uber app. The ride-hailing giant has expanded its pilot program nationwide in response to customer safety concerns.

“When women riders and drivers told us they wanted more control over how they ride and earn, we listened,” wrote Uber in a blog post announcing the move. “That feedback led to Women Preferences, features designed to give women the choice to ride with other women. Since our first pilots last summer, we’ve heard just how much that choice matters — from feeling more comfortable in the back seat to more confident behind the wheel.”

According to Uber, passengers can request to be matched with a woman driver by requesting an on-demand ride, scheduling a trip in advance, or setting a preference within the ride app. If wait times are longer than anticipated, the rider can opt to be paired with a driver of any sex.

Uber says it began offering the rides in 2019, after women in Saudi Arabia gained the right to drive. Since then, it has rolled out the program in Europe, Latin America, Australia, and Africa — although in some countries, only drivers can make the match.

The move forward on Women Preferences comes despite a pair of lawsuits aimed at Uber and its main competitor, Lyft. According to Time reporting, the plaintiff’s lawyers argue that women-only rides unfairly limit the volume of rides for male drivers and reinforce gender stereotypes about men.

Lyft rolled out its similar program, Women + Connect, in 2023. The initiative is slightly more expansive than Uber’s preferences, allowing both women and nonbinary people to participate.

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This article originally appeared on CultureMap.com.

6 Houston entrepreneurs land on coveted Inc. Female Founders 500 list

the future is female

Six Houston female entrepreneurs and innovators were named to the 2026 Female Founders 500 list.

The annual list compiled by Inc. Magazine recognizes female founders based in the U.S. who have built businesses that have moved their industries forward. The group collectively generated approximately $12.3 billion in 2025 revenue and $12.2 billion in funding to date, according to Inc. Five Houstonians were named to the list last year.

"Each year, we are increasingly amazed by the extraordinary leaders on our Inc. Female Founders 500 list," Bonny Ghosh, editorial director at Inc., said in a news release. "The honorees on this year's list include innovators in AI, beauty and wellness trendsetters winning devoted fans, and nonprofit leaders making a real impact in their communities. Together, they're showing all of us what trailblazing female leadership looks like."

The Houston founders are:

  • Sassie Duggleby, CEO and co-founder of Houston space tech and engine company Venus Aerospace. Duggleby also serves on the Texas Space Commission board of directors.
  • Stephanie Murphy, CEO and executive chairman of Aegis Aerospace, which provides space services, spaceflight product development, and engineering services. Murphy also serves as chair of the Texas Aerospace Research and Space Economy Consortium Executive Committee.
  • Laureen Meroueh, CEO and founder of Hertha Metals, which has developed a cost-effective and energy-efficient process that converts low-grade iron ore of any format directly into molten steel or high-purity iron in a single step.
  • LaToshia Norwood, managing partner of L'Renee & Associates (LRA), a full-service project management consulting firm.
  • Lauren Rottet, president and founding principal of Rottet Studio, an international architecture and design firm focused on corporate, lifestyle and hospitality projects
  • Nina Magon, founder and CEO of Nina Magon Studio / Nina Magon Consumer Products, a residential and commercial interior design company. She also co-founded KA Residences earlier this year.

"Grateful to be recognized again on the Inc. Female Founders 500," Duggleby said in a LinkedIn post. "The best part of building Venus Aerospace has been working with an incredible team pushing the boundaries of flight—and helping bring more women into aerospace along the way.

Meroueh, whose company emerged from stealth last year, voiced a similar push for bringing more women into the fold.

"We've seen a 7x jump in female-led IPOs over the last decade, from just two in 2014 (less than 1% of all IPOs) to 14 in 2024 (nearly 9% of all IPOs). Progress is happening," Meroueh shared in a LinkedIn post. "Yet, less than 1% of venture funding in hard tech goes to female-founded companies. But as my friend Ana Kraft says, the right man for the job may be a woman."

Twenty-nine Texas female founders made this list, including Amber Venz Box, founder of the Dallas-based LTK shopping platform, and Cheryl Sew Hoy, CEO and founder of Austin-based Tiny Health, a fast-growing at-home microbiome health platform. See the full list of winners here.

NASA clears Artemis moon rocket for April launch with 4 astronauts

3, 2, 1...

NASA has cleared its moon rocket on for an April launch with four astronauts after completing the latest round of repairs.

The 322-foot (98-meter) rocket will roll out of the hangar and back to the pad at Florida's Kennedy Space Center, leading to a launch attempt as early as April 1. It will mark humanity's first trip to the moon in more than 50 years.

The Artemis II crew should have blasted off on a lunar flyaround earlier this year, but fuel leaks and other problems with the Space Launch System rocket interfered.

Although NASA managed to plug the hydrogen fuel leaks at the pad in February, a helium-flow issue forced the space agency to return the rocket to the Vehicle Assembly Building for repairs, bumping the mission to April.

The space agency has only six days at the beginning of April to launch before standing down until April 30 into early May.

"It's a test flight and it is not without risk, but our team and our hardware are ready,” NASA's Lori Glaze told reporters at the end of the two-day flight readiness review.

Glaze and other NASA officials declined to provide the risk probabilities for the upcoming mission.

History has shown that a new rocket has essentially a 50% chance of success, said John Honeycutt, chair of the mission management team.

There's so much gap since the only other SLS flight — more than three years ago without anyone on board — that it's difficult to understand any risk assessment numbers, Honeycutt said.

“It's not the first flight," Glaze said. "But we're also not in a regular cadence. So we definitely have significantly more risk than a flight system that's flying all the time.”

Late last month NASA's new administrator, Jared Isaacman, announced a major overhaul of the Artemis program to speed things up and, by doing so, reduce risk.

Dissatisfied with the slow pace and lengthy gaps between lunar missions, he added an extra practice flight in orbit around Earth for next year. That is now the new Artemis III, with the moon landing by two astronauts shifted to Artemis IV. Isaacman is targeting one and maybe even two lunar landings in 2028.

NASA's Office of Inspector General warned in an audit that the space agency needs to come up with a rescue plan for its lunar crews. Landing near the moon's south pole will be riskier than it was for the Apollo astronauts closer to the equator given the rough polar terrain, according to the report.

The report cited the lunar landers as the top contributor for potential loss of crew during the first few Artemis moon landings. It listed the space agency’s loss-of-crew threshold at 1-in-40 for lunar operations and 1-in-30 for Artemis missions overall.

Contracted by NASA to provide the moon landers for astronauts, Elon Musk's SpaceX and Jeff Bezos' Blue Origin have accelerated work in order to meet the new 2028 target date. The inspector general's office said many technical challenges remain including refueling their landers in orbit around Earth before flying to the moon.

NASA sent 24 astronauts to the moon during Apollo, 12 of whom landed on it. All but one of the moonshots — Apollo 13 — achieved their prime objectives. The program ended with Apollo 17 in 1972.