Houston aerospace co. soars with first U.S. test flight of hypersonic engine

taking off

Venus Aerospace successfully completed the flight test of its hypersonic engine, the first of an American-developed engine of its kind. Photo courtesy Venus Aerospace

Houston-based Venus Aerospace successfully completed the first U.S. flight test of its proprietary engine at a demonstration at Spaceport America in New Mexico.

Venus’ next-generation rotating detonation rocket engine (RDRE) is supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA and aims to enable vehicles to travel four to six times the speed of sound from a conventional runway. The recent flight test was the first of an American-developed engine of its kind.

"With this flight test, Venus Aerospace is transforming a decades-old engineering challenge into an operational reality,” Thomas d'Halluin, managing partner at Airbus Ventures, an investor in Venus, said in a news release. “Getting a rotating detonation engine integrated, launch-ready, and validated under real conditions is no small feat. Venus has shown an extraordinary ability to translate deep technical insight into hardware progress, and we're proud to support their bold approach in their attempt to unlock the hypersonic economy and forge the future of propulsion."

Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel. It is designed to be affordable and scalable for defense and commercial systems.

The RDRE is also engineered to work with the company's air-breathing detonation ramjet, the VDR2, which helps enable aircraft to take off from a runway and transition to speeds exceeding Mach 6. Venus plans for full-scale propulsion testing and vehicle integration of this system. Venus’ ultimate goal is to develop a Mach 4 reusable passenger aircraft, known as the Stargazer M4.

"This milestone proves our engine works outside the lab, under real flight conditions," Andrew Duggleby, Venus co-founder and chief technology officer, said in the release. "Rotating detonation has been a long-sought gain in performance. Venus' RDRE solved the last but critical steps to harness the theoretical benefits of pressure gain combustion. We've built an engine that not only runs, but runs reliably and efficiently—and that's what makes it scalable. This is the foundation we need that, combined with a ramjet, completes the system from take-off to sustained hypersonic flight."

The hypersonic market is projected to surpass $12 billion by 2030, according to Venus.

"This is the moment we've been working toward for five years," Sassie Duggleby, CEO and co-founder of Venus Aerospace, added in the release. "We've proven that this technology works—not just in simulations or the lab, but in the air. With this milestone, we're one step closer to making high-speed flight accessible, affordable, and sustainable."

Venus Aerospace has used a Small Business Innovation Research (SBIR) grant from NASA to develop new features of its compact rocket engine for hypersonic flights. Photo courtesy of Venus Aerospace.

Houston space tech company develops new hypersonic engine features with NASA funding

testing 1, 2, 3

Outfitted with a new type of aerospace technology, a rocket engine developed by Houston startup Venus Aerospace for hypersonic flights will undergo testing this summer.

Supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA, Venus Aerospace came up with a new design for nozzles — engine parts that help manage power — for its compact rocket engine. Venus Aerospace says the newly configured nozzles have “exceeded expectations” and will be incorporated into Venus’ upcoming ground-based engine testing.

“We’ve already proven our engine outperforms traditional systems on both efficiency and size,” Venus Aerospace CEO Sassie Duggleby says. “The technology we developed with NASA’s support will now be part of our integrated engine platform — bringing us one step closer to proving that efficient, compact, and affordable hypersonic flight can be scaled.”

The engine at the heart of Venus’ flight platform is called a rotating detonation rocket engine (RDRE). Venus says it’s the first U.S. company to make a scalable, affordable, flight-ready RDRE.

Unlike conventional rocket engines, Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel.

“This is just the beginning of what can be achieved with Venus propulsion technology,” says Andrew Duggleby, chief technology officer at Venus, founded in 2020. “We’ve built a compact high-performance system that unlocks speed, range, and agility across aerospace, defense, and many other applications. And we’re confident in its readiness for flight.”

Last fall, the company unveiled a high-speed engine system that enables takeoff, acceleration, and hypersonic cruising — all powered by a single engine. While most high-speed systems require multiple engines to operate at different speeds, Venus’ innovation does away with the cost, weight and complexity of traditional propulsion technology.

Among other applications, the Venus system supports:

  • Spacecraft landers
  • Low-earth-orbit satellites
  • Vehicles that haul space cargo
  • Hypersonic drones and missiles
Venus Aerospace announced that it's successfully ran the first long-duration engine test of their Rotating Detonation Rocket Engine in partnership with DARPA. Screenshot via Venus Aerospace

Houston space tech startup reports milestone achievement in partnership with federal agency

taking flight

A Houston tech company working on an engine to enable hypersonic flights has reported its latest milestone.

Venus Aerospace announced that it's successfully ran the first long-duration engine test of their Rotating Detonation Rocket Engine in partnership with Defense Advanced Research Projects Agency, or DARPA.

The RDRE engine Venus is working on is uniquely designed and a first in the field. It has an additional 15 percent efficiency over traditional rocket engines.

"As we continue to push towards our ultimate mission of high-speed global flight, this is an important technical milestone for having a flight-ready engine," Andrew Duggleby, CTO and co-founder of Venus Aerospace, says in the news release. "I'm incredibly proud of our team as they continue to push forward on this world-changing technology."

The test results are a big win, as the RDRE had previously only been tested in a short-duration capacity. DARPA is just one of several U.S. Government agencies that has contracts with Venus.

"The successful test is a testament to our team's dedication and expertise. We're building something special here at Venus, in large part because we have the right people and the right partners," Sassie Duggleby, CEO and co-founder of Venus Aerospace, adds. "I can't say enough about our collaboration with DARPA and the role they played in helping us make this leap forward."

Last summer, Venus added a new investor to its cap table. Andrew Duggleby founded Venus Aerospace with his wife and CEO Sassie in 2020, before relocating to the Houston Spaceport in 2021. Last year, Venus raised a $20 million series A round. Sassie joined the Houston Innovators Podcast a year ago to explain her company's mission of "home for dinner."

DARPA Partnership Long-Duration Testwww.youtube.com

This Houston company is one step closer to enabling high-speed global travel. Photo courtesy of Venus Aerospace

Houston startup with hypersonic engine tech adds new investor

it's rocket science

A Houston-based company that's developing an engine that'll enable one-hour global transportation has announced its latest investor.

Venus Aerospace released the news that Silicon Valley venture capital firm, Airbus Ventures, has joined its team of investors. The supersonic combustion engine technology — more akin to a rocket's engine than an airplane's — is revolutionary because allows for travel at a higher elevation. Jet engines rely on air outside of the aircraft to combust, and rocket engines work with a system that supplies air internally.

“Venus has developed the world’s first liquid-propellant rotating detonation rocket engine (RDRE) with a double-digit percentage increase in efficiency over standard regular engines, making the hypersonic economy possible,” says Sassie Duggleby, CEO and co-founder of Venus, in a news release. “We’re delighted to bring Airbus Ventures into the Venus family and look forward to growing our collaboration as we harness the future of hypersonic flight.”

Duggleby founded Venus Aerospace with her husband and CTO Andrew in 2020, before relocating to the Houston Spaceport in 2021. Last year, Venus raised a $20 million series A round. That round, led by Prime Movers Lab, is being used to fund tech development and initial flight testing for building its Mach 9 hypersonic drone and Mach 9 spacecraft. Venus did not disclose how much their newest investor has contributed.

“In the world of RDREs, their pioneering approach — designing, building, and demonstrating the first liquid, storable-propellant fueled rotating detonation rocket engine — unlocks advanced aircraft capabilities and opens new vistas on our whole planetary system,” says Airbus Ventures Managing Partner Thomas d’Halluin in the release. “Venus’ compact, low mass, high efficiency engine capability will have an immediate impact on lunar and martian landers, space mobility and logistics, and deep space mission proposals.

"Here on Earth today, we will see unprecedented performance gains for drones of all kinds, and more practical and faster-than-anticipated opportunities for ultra-high-speed passenger and cargo rocket plane flights,” he continues.

Venus, which as has contracts with NASA and US Defense Agencies, has plans to test its technology this summer at its headquarters in the Houston Spaceport.

“With the strong support of Airbus Ventures now joining our investor syndicate, our next round will let Venus take the final step from lab to prototype as we fly our drone to Mach 3 under RDRE power," says Andrew Duggleby, in the release. “This will include long-duration engine runs this summer at Spaceport Houston, as well as the design, build, and flight of our drone with the broader Venus team and our incredible partners.”

Houston-based Venus Aerospace has raised $20 million — and is one step closer to providing one-hour global travel. Photo courtesy of Venus Aerospace

Houston aerospace startup secures $20M series A investment round

money moves

A year after raising $3 million in seed funding, a Space City startup has closed its high-flying series A round to the tune of $20 million.

Venus Aerospace, which is working on a zero-carbon emission spaceplane that will enable one-hour global travel, closed its series A funding round led by Wyoming-based Prime Movers Lab. The firm has a few dozen breakthrough scientific companies in its portfolio, including another Houston-based, space-focused startup, Axiom Space. The round also saw participation from previous investors: Draper Associates, Boost, Saturn 5, Seraph Group, Cantos, The Helm & Tamarack Global.

Venus Aerospace was founded by Sarah "Sassie" and Andrew Duggleby, who serve as the company's CEO and CTO, respectively, in 2020 in California. The Texas A&M University alumni later moved the business into its current facilities in the Houston Spaceport.

"The U.S. is in the middle of a global race for hypersonic technology, and the breakthroughs being developed by Sassie, Andrew, and their team have numerous civilian and defense applications," says Prime Movers Lab General Partner Brandon Simmons in a news release. "Venus hit critical engine tests, vehicle design, and growth milestones that make me tremendously excited about the future of American hypersonic flight."

According to the release, the company will use the fresh funding on enhancing its three main technologies: a next-generation rocket engine, aircraft shape, and leading-edge cooling system, which allows for the Venus spaceplane to take off from existing spaceports.

"These recent advances in technology finally enable a spaceplane, a vehicle long imagined, but only now possible," says Andrew Duggleby in the release. "We will use this round of funding to get into flight testing and engine testing at Spaceport Houston. Bringing this technology forward into systems, drones and ultimately spaceplanes, it will take both new space veterans and bright new minds to solve. We've gone from impossible to hard, and this investment will allow us to knock down the next few steps."

The past year has represented significant growth for Venus, with developing contracts with the government and building out the company's team — and the company still has eight positions listed on its website. After building out and testing its technology, Venus also started a ground test campaign at Spaceport Houston.

"We are excited to continue our partnership with Prime Movers Lab and our other great investors. In the past year, with our initial funding, we have scaled from 3 people to 40. These are the world's best rocket scientists, engineers, and operators," says Sassie Duggleby in the release. "With this funding, we will continue to push forward toward our next technical milestones, hire great people, and scale our organization. We are excited to continue engineering the future of high-speed aviation."

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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.

Kinder leads 19 Houstonians on Forbes' World's Billionaires List 2026

World's Richest 2026

According to Forbes, there has “never been a better time to be a billionaire” than in 2026, and the publication's newest World’s Billionaires List has revealed the 19 Houston billionaires that have risen among the wealthiest worldwide.

Kinder Morgan chairman Richard Kinder surpassed hospitality honcho Tilman Fertitta as the richest billionaire in Houston, ranking No. 232 on the global list with an estimated net worth of $13 billion. His net worth has grown by $2.4 billion since last year.

Fertitta, 68, may not be the richest Houstonian anymore, but his wealth is still on the rise. He ranked 268th on the list with an estimated net worth of $11.7 billion, up from $11.3 billion last year.

Out of the 390 billionaire newbies that made their debut onto the list this year, one of them calls Houston home: restaurateur and commodities trader Ignacio Torras. Torras, 61, is the founder and CEO of global commodities trading company Tricon Energy, and he owns Michelin-starred local restaurant BCN Taste & Tradition and its sister eatery MAD. But that's not all he spends his time doing, according to Forbes.

"In 2024 Torras launched a soccer tournament for neurodivergent players called the Genuine Cup," his profile said. "Last year 800 players and 30 teams from around the world played at Rice University stadium."

Torras debuted as No. 2600 on the list with an estimated net worth of $1.5 billion.

Houston-born multi-hyphenate superstar Beyoncé Knowles-Carter also staked a claim among the world's richest people in 2026. She ranked No. 3332 on the list with a net worth of $1 billion, thanks to her "years of music sales, touring and collecting art with her already-billionaire husband Jay-Z (estimated net worth: $2.8 billion)," Forbes said.

"The majority of pop star Beyonce’s net worth comes from her roughly three decades as a solo performer and a member of the girl-group Destiny's Child," her profile said. "She holds the record for the most Grammy wins ever, with 35, and won her first Album of the Year trophy in 2025. She and her billionaire husband Jay-Z purchased a $200 million Malibu mansion in 2023, in what was the most expensive home sale in California history."

Beyoncé also ranks No. 21 in the publication's separate list of The World's Celebrity Billionaires.

Here's how the rest of Houston's billionaires fared on this year's list:

  • Toyota mega-dealer Dan Friedkin: No. 279; $11.4 billion, up from $7.7 billion
  • Pipeline heir Randa Duncan Williams: tied for No. 323 with an estimated net worth of $10.2 billion, up from $9.3 billion in 2025. Fellow pipeline heirs Dannine Avara and Milane Frantz tied for No. 332 globally. Each has an estimated net worth of $10.1 billion, up from $9.2 billion. Scott Duncan ranks No. 353 with a $9.8 billion estimated net worth, up from $9 billion in 2025.
  • Oil tycoon Jeffery Hildebrand: No. 341; $10 billion, up from $7.7 billion
  • Houston Texans owner Janice McNair and family: No. 528; $7.3 billion, up from $6.2 billion
  • Energy exploration chief exec George Bishop of The Woodlands: No. 908; $4.7 billion, down from $5 billion
  • Westlake Corporation co-owners Albert Chao, James Chao and their families: tied for No. 1074; $4 billion, flat from 2025
  • Hedge fund honcho John Arnold: No. 1504; $2.8 billion, down from $2.9 billion
  • Perry Homes executive chair Kathy Britton: No. 1611; $2.6 billion, flat from 2025
  • Houston Astros owner Jim Crane: No. 1676; $2.5 billion, up from $2.4 billion
  • Former Houston Rockets owner Leslie Alexander: No. 1834; $2.3 billion, up from $1.9 billion
  • Mercedes-Benz mega-dealer Joe Agresti: No. 3185; $1.1 billion, flat from 2025
  • Frontier Airlines chairman William Franke: No. 3332; $1 billion, down from $1.2 billion

Elsewhere in Texas

Austin billionaire Elon Musk was declared the world's richest person for the second consecutive year, and Forbes said his “grip on the top spot is as strong as it’s ever been.”

“Musk became the first person to hit $500 billion in wealth, in October,” Forbes said. “Then $600 billion and $700 billion, within four days in December. Then $800 billion, in February.”

The Tesla, SpaceX, and xAI founder’s current net worth has skyrocketed to $839 billion — a shocking $497 billion more than his 2025 net worth.

In Dallas-Fort Worth, Walmart heiress Alice Walton has maintained her elite status as the world’s richest woman for the third year in a row. Walton is the 14th richest person on the planet with a current net worth of $134 billion, an eye-catching $33 billion higher than her 2025 net worth. She is the first American woman worth $100 billion, and one of only 20 “centi-billionaires” worldwide claiming 12-figure fortunes, also known as the "$100 Billion Club."

Koch Inc. stakeholder Elaine Marshall and her family are the richest Dallas residents, ranking No. 71 globally with an estimated net worth of $30.9 billion. Her net worth has grown by $2.6 billion since last year.

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This article originally appeared on CultureMap.com.

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