Pamela Melroy, a member of the United States Astronaut Hall of Fame, has joined Venus Aerospace's board of directors. Photo courtesy Venus Aerospace/PRNewsFotos.

Retired Air Force colonel and former NASA astronaut Pamela Melroy, who previously served as deputy administrator of NASA, recently joined the board of directors at Houston-based Venus Aerospace.

Venus Aerospace, a startup founded in 2020, develops rocket engine technology, including rotating rocket detonation engines for hypersonic flights. These engines promise higher power, greater fuel efficiency and lower emissions than conventional rocket engines or jet engines, according to the Interesting Engineering website. The global rocket propulsion market is expected to grow from $9.5 billion in 2025 to $29.9 billion by 2034, according to a forecast by ResearchAndMarkets.com.

“Advanced rocket propulsion has been of interest to me for over a decade, and Venus Aerospace’s recent achievements in demonstrating the stability of rotating detonation rocket engines represent a significant development,” says Melroy, who left NASA earlier this year and is now a self-employed consultant living in Arlington, Virginia.

Melroy, a member of the United States Astronaut Hall of Fame, has built an illustrious career in the aerospace sector. Aside from being a NASA official, she was:

  • One of only two female astronauts to command a space shuttle mission
  • Deputy program manager of Orion space exploration initiatives at aerospace and defense contractor Lockheed Martin
  • Senior technical adviser and director of field operations for the Federal Aviation Administration’s Office of Commercial Space Transportation, where she came up with the first safety guidelines for commercial human spaceflight
  • Deputy director of the Tactical Technology Office at the Defense Advanced Research Projects Agency (DARPA).
  • An adviser for the establishment of the Australian Space Agency

Venus Aerospace said in a news release that as a leader at three federal agencies, “Melroy shaped America’s strategy in space, accelerated commercial space partnerships, and deepened space exploration.”

Sassie Duggleby, co-founder and CEO of Venus Aerospace, called Melroy “a preeminent leader in the world of aerospace.”

In May, Venus Aerospace completed the inaugural test flight of its rotating detonation rocket engine. The startup, whose headquarters is at the Houston Spaceport, says it’s the only company in the world that has manufactured a flight-proven, high-thrust rotating detonation rocket engine.

On the horizon for Venus Aerospace is production of Stargazer M4, a high-speed aircraft capable of two-hour global travel.

Venus Aerospace’s investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. The startup also gets support from the Air Force Research Laboratory (AFWERX), the Air Force, NASA and DARPA.

Jordan Blashek, co-founder and managing partner of America’s Frontier Fund, which backs startups creating breakthrough technologies, said his firm’s investment in Venus Aerospace “underscores our focus on supporting American companies that are revolutionizing industries of the future.”

“With recent hypersonic advancements from China and Russia, safeguarding American innovation and securing our industrial base has never been more urgent,” Blashek added. “Venus Aerospace is poised to redefine hypersonic flight and ensure America’s continued leadership in aerospace innovation.”

Since its founding, Venus Aerospace has raised $78.3 million in investments, according to PitchBook data.

Tempest Droneworx won the Best Speed Pitch award at SXSW Pitch earlier this year. Photo via LinkedIn.

Here's what's next for Houston’s Tempest Droneworx after SXSW Pitch win

winner, winner

It’s not easy to be a standout at South by Southwest, especially during SXSW Interactive, which is the subsection of the festival that focuses on new media, technology and entrepreneurship.

But it’s even more difficult to win at SXSW Pitch, the competition for startups and entrepreneurs that showcases innovative new technology to a panel of industry experts, high-profile media professionals, venture capital investor, and angel investors.

Tempest Droneworx, a Houston-based company that provides real-time intelligence collected through drones, robots and sensors, did just that in March, taking home the Best Speed Pitch award. It was also named a finalist and alternate in the full SXSW Pitch competition. The company is known for it flagship product, Harbinger, a software solution that agnostically gathers data at virtually any scale and presents that data in easy-to-understand visualizations using a video game engine.

Tempest CEO and founder Ty Audronis says his company won based on its merits and the impact it’s making and will make on the world. Audronis founded the company after his hometown of Paradise, California, was destroyed by a wildfire in 2018.

“(SXSW) was a huge moment for our team,” says Audronis, whose background is in science visualization, data visualization and visual effects for the movie industry. “This is about what everyone at Tempest Droneworx has created, and our mission to make sure that issues—like the one that befell Paradise, California, my hometown, and the inspiration for our Harbinger software—don’t become the full-blown (disasters)."

Audronis shares that the company is working to release an agriculture beta this summer and is raising a Tactical Funding Increase (TACFI) round through the AFWERX, the Department of the Air Force’s innovation arm.

Tempest’s Harbinger is impressing investors and clients alike, but what is it exactly and what does it do?

The best way to explain the solution is in how it’s redefining the agriculture space. Tempest has deployed the product at Grand Farm in North Dakota, an agtech operation that seeks to promote sustainable, climate-resilient farming using applied technology.

“We decided to go down the road of agriculture,” Audronis says. “We're currently installed at the Grand Farm in North Dakota, which is a farm that is very closely tied to Microsoft. They do third-party verification of new soils and fertilizers, and we are helping them with visualizing the data that they're getting from their sensors.”

Additionally, Audronis and his co-founder and wife, Dana Abramovitz, spearhead a pilot program at Doubting Thomas Farms, an organic farm in Minnesota, where the company has installed 22 in-ground sensors that can measure volatile organic emissions.

To further optimize their solutions approach, Tempest Droneworx will also train artificial intelligence to look for overspray from neighboring non-organic farms. This will help maintain organic certification and reduce insurance claims for lost crops.

“This will save Doubting Thomas Farms and other organic farms a boatload of cash,” Audronis says.

During an exclusive tour with InnovationMap, Audronis pulled up a live feed of sensors buried around the Minnesota farm up on the conference room display. The feed did, in fact, look like a video game, with the sensors giving real-time data about the farm’s temperature, moisture level, humidity, CO2 and nitrogen.

Harbinger will collect, extract and extrapolate all of the data and later provide a digital almanac for farmers to track the history of their crops.

As the office tour continued, Audronis pointed out the company’s expanding partnership with the U.S. Military.

As a retired U.S. Navy veteran with over two decades of experience designing, building and piloting drones, Audronis understands that Harbinger has multiple military applications that will ultimately save lives—a core tenet of his company’s mission.

The company has launched a robotic dog known as UBU, developed by Tempest partner Ghost Robotics, that enables faster, more accurate ground surveys for explosive devices. This task previously required multiple airmen and hours to complete, Audronis says.

With agriculture and military initiatives in progress and making an impact, Audronis hopes to one day bring his original vision for Tempest Droneworx and Harbinger full circle by getting the call to combat California’s next catastrophic wildfire.

“We're proving our technology in military and in agriculture right now,” Audronis says. “Eventually, I would like to still save some lives with wildfire. That's really the purpose of the company … Whether it's agriculture, smart cities, the bottom line is saving lives through real-time situational awareness."

HTX Labs has been awarded a contract with the U.S. Air Force to develop a virtual AI-powered classroom for workers who maintain the Boeing KC-135’s F108 engine. Photo via Getty Images.

Houston XR training company lands $5.8M contract with Air Force

taking flight

The U.S. Air Force’s AFWERX innovation arm has picked Houston-based HTX Labs to provide AI-enabled immersive training for workers who maintain Boeing KC-135 refueling tankers.

HTX Labs, an extended reality (XR) company and provider of immersive training programs for U.S. armed forces, will receive as much as $5.8 million in military funding for this project.

The new initiative comes on the heels of HTX Labs completing the second phase of a virtual KC-135 maintenance training program in partnership with Mildenhall, a Royal Air Force station in England. HTX Labs received Small Business Innovation Research (SBIR) funding for the second-phase project.

Under the new initiative, part of its EMPACT training platform, HTX Labs will develop a virtual AI-powered classroom for workers who maintain the KC-135’s F108 engine. In conjunction with this project, HTX Labs will collaborate with the Maine Air National Guard’s 101st Air Refueling Wing Maintenance Squadron on improving EMPACT.

Major Ryan Wing of the Maine Air National Guard says KC-135 maintenance workers “have limited opportunities to perform some of the more complex aircraft and engine repairs in a training environment. Providing immersive training to our warfighters is essential to ensuring mission readiness.”

In January, HTX Labs tapped Brian Reece as vice president of strategic accounts for the Air Force. In this role, he oversees HTX Labs’ relationship with this military branch. Reece is a retired Air Force colonel.

In 2022, Dallas-based Cypress Growth Capital invested $3.2 million in HTX Labs, which was founded in 2017.

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NASA names new chief astronaut based in Houston

new hire

NASA has a new chief astronaut. Scott Tingle, stationed at the space agency’s Johnson Space Center in Houston, assumed the post Nov. 10.

Tingle succeeds NASA astronaut Joe Acaba, who had been chief astronaut since February 2023. Acaba now works on the staff of the Johnson Space Center’s director.

As chief astronaut, Tingle runs NASA’s Astronaut Office. His job includes developing astronauts’ flight crew operations and assigning crews for space missions, such as Artemis missions to the moon.

Tingle, a former captain in the Navy, was named a NASA astronaut candidate in 2009. He has logged over 4,500 flight hours in more than 50 aircraft.

Tingle was a flight engineer aboard the International Space Station, where he spent 168 days in orbit during two expeditions that launched in December 2017. Since returning to Earth, he has held various roles in the Astronaut Office, including mission support, technical leadership and crew readiness.

Before joining NASA, Tingle worked in El Segundo, California, on the technical staff of The Aerospace Corp., a nonprofit that supports U.S. space programs.

Tingle recalls expressing his desire to be an astronaut when he was 10 years old. It took him four tries to be accepted by NASA as an astronaut candidate.

“The first time I figured it was kind of too early. The second application, they sent out some feelers, and that was about it. Put in my third application, and got a couple of calls, but it didn’t quite happen,” Tingle said in an article published on the website of Purdue University, his alma mater.

ExxonMobil officially pauses plans for $7B Baytown hydrogen plant

Change of Plans

As anticipated, Spring-based oil and gas giant ExxonMobil has officially paused plans to build a low-hydrogen plant in Baytown, Chairman and CEO Darren Woods told Reuters in late November.

“The suspension of the project, which had already experienced delays, reflects a wider slowdown in efforts by traditional oil and gas firms to transition to cleaner energy sources as many of the initiatives struggle to turn a profit,” Reuters reported.

Woods signaled during ExxonMobil’s second-quarter earnings call that the company was weighing whether it would move forward with the proposed $7 billion plant.

The Biden-era Inflation Reduction Act created a new 10-year incentive, the 45V tax credit, for production of clean hydrogen. But under President Trump’s "One Big Beautiful Bill Act," the window for starting construction of low-carbon hydrogen projects that qualify for the tax credit has narrowed. The Inflation Reduction Act mandated that construction start by 2033. But the Big Beautiful Bill switched the construction start time to early 2028.

“While our project can meet this timeline, we’re concerned about the development of a broader market, which is critical to transition from government incentives,” ExxonMobil Chairman and CEO Darren Woods said during the company’s second-quarter earnings call.

Woods had said ExxonMobil was figuring out whether a combination of the 45Q tax credit for carbon capture projects and the revised 45V tax credit would enable a broader market for low-carbon hydrogen.

“If we can’t see an eventual path to a market-driven business, we won’t move forward with the [Baytown] project,” Woods said.

“We knew that helping to establish a brand-new product and a brand-new market initially driven by government policy would not be easy or advance in a straight line,” he added.

ExxonMobil announced in 2022 that it would build the low-carbon hydrogen plant at its refining and petrochemical complex in Baytown. The company has said the plant is slated to go online in 2027 and 2028.

ExxonMobil had said the Baytown plant would produce up to 1 billion cubic feet of hydrogen per day made from natural gas, and capture and store more than 98 percent of the associated carbon dioxide. The plant would have been capable of storing as much as 10 million metric tons of CO2 per year.

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This article originally appeared on EnergyCapitalHTX.com; it was updated to include new information about the plant in December 2025.

8 can't-miss Houston business and innovation events for December

where to be

Editor's note: Houston’s innovation scene is loading up the calendar before the holidays. From climatetech pitch days to the return of favorite festive shindigs, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Dec. 3 — SouthWest-Midwest National Pediatric Device Innovation Consortium

This annual event brings together members, colleagues and guests of the FDA-supported pediatric consortium who are dedicated to assisting device innovators throughout the lifecycle in delivering innovative solutions to patients. Featured speakers include Dr. Danielle Gottlieb from Le Bonheur Children's Hospital, Balakrishna Haridas from Texas A&M University and Dr. Chester Koh from Texas Children’s Hospital.

This event is Wednesday, Dec. 3, from 3:30-8 p.m. at Texas A&M EnMed Tower. Register here.

Dec. 4 — Resiliency & Adaptation Sector Pitch Day: Scaling Solutions to Address Climate Disruption

Join innovators, industry leaders, investors and policymakers as they explore breakthrough climate and energy technologies at Greentown's latest installment of its Sector Pitch Day series, focused on resiliency and adaptation. Hear from Adrian Trömel, Chief Innovation Officer at Rice University; Eric Willman, Executive Director of the Rice WaTER Institute; pitches from 10 Greentown startups and more.

This event is Thursday, Dec. 4, from 1-3:30 p.m. at the Ion. The Ion Holiday Block Party follows. Register here.

Dec. 4 — The Ion District Holiday Block Party

The Ion District, Rice Alliance and Greentown Labs will celebrate the season during the Ion District Holiday Block Party. Expect to find local bites, drinks, music and meaningful connections across Houston’s innovation ecosystem. Guests are invited to participate in Operation Love’s holiday toy drive supporting local families.

This event is Thursday, Dec. 4, from 4-7 p.m. Register here.

Dec. 8 — Pumps & Pipes Annual Event 2025

The annual gathering brings together cross-industry leaders in aerospace, energy and medicine for engaging discussions and networking opportunities. Connor Grennan, Chief AI Architect at the NYU Stern School of Business, will present this year's keynote address, entitled "Practical Strategies to Increase Productivity." Other sessions will feature leaders from Cena Research Institute, NASA Ames Research Center, ExxonMobil, Southwest Airlines and more.

This event is Monday, Dec. 8, from 8 a.m.-5 p.m., at TMC Helix Park. Register here.

Dec. 9 — Jingle and Mingle

Don your ugliest sweater and snap a pic with Startup Santa! Bayou City Startups, Rocket Network, Founder Institute and Energytech Nexus are bringing back their popular Jingle Mingle for the third year. Network and celebrate with founders, community stakeholders and others in Houston's innovation scene. Donations to the Houston Food Bank are encouraged in place of tickets.

This event is Tuesday, Dec. 9, from 5-7 p.m., at the Solarium in Midtown. Register here.

Dec. 9 — European Innovation Spotlight

Celebrate European cooperation and innovation with the European Innovation Council during an exclusive demo night and networking event at Greentown Labs. Hear from 15 EIC-backed founders supported by the European Union with top-class climatetech technologies, listen to a fireside chat and engage in a networking event following the pitches.

This event is Tuesday, Dec. 9, from 4:30-7 p.m., at the Ion. Register here.

Dec. 9-10 — Energy LIVE

Energy LIVE is Reuters Events' flagship ConfEx that brings the full energy ecosystem together under one roof to solve the industry's most urgent commercial and operational challenges. The event will feature 3,000-plus senior executives across three strategic stages, a showcase of 75-plus exhibitors and six strategic content pillars.

This event is Dec. 9-10 at NRG Park. Register here.

Dec. 15 — Innov8 Hub Pitch Day

Hear pitches from members of the latest Innov8 Hub Innovators to Founders cohort, which empowers academic scientists and innovators to become successful startup founders. Meet and network with the founders over light bites and drinks at a reception following the pitch competition.

This event is Monday, Dec. 15, at the Innovation Center at UH Technology Bridge (Bldg. 4). Register here.