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 will use an investment from America's Frontier Fund to advance its VDR2 engine. Photo courtesy of Venus Aerospace

Houston hypersonic engine company lands investment from deep-tech firm

super speed

Hypersonic engine technology company Venus Aerospace announced an investment for an undisclosed amount from deep-tech investment firm America's Frontier Fund (AFF).

Venus plans to use the funds to advance its VDR2 engine, which has the potential to support a commercial flight from Los Angeles to Tokyo in under two hours, according to a statement.

"AFF's investment in Venus Aerospace underscores our focus on supporting American companies that are revolutionizing industries of the future," Jordan Blashek, co-founder and managing partner of AFF, said in a news release. "With recent hypersonic advancements from China and Russia, safeguarding American innovation and securing our industrial base has never been more urgent. Venus Aerospace is poised to redefine hypersonic flight and ensure America's continued leadership in aerospace innovation."

Venus plans to integrate components of its RDRE engine into the advanced VDR2 engine, increasing efficiency with air-augmentation technology capable of 2,000 pounds of thrust. This will allow the VDR2 engine to operate at wider ranges of speeds and altitudes. The company plans to ground-test the VDR2 in 2025.

Venus also plans to make history this year by conducting the first atmospheric flight of its RDRE engine, which has applications in the space and defense industries.

"AFF's commitment to pioneering technological advancements aligns seamlessly with our mission to enhance American competitiveness in hypersonics,” Sassie Duggleby, CEO and co-founder of Venus Aerospace, added in the news release. “Their deep-tech expertise and proven track record in scaling innovative companies will be invaluable as we work to achieve our goals."

Venus Aerospace believes these innovations can “strengthen U.S. leadership in aerospace, defense, and energy innovation."

Venus also aims to use its engine technology to power the Stargazer M4, the world's first Mach 4 reusable commercial aircraft and a prime example of advanced propulsion systems.

The company launched in 2020 and has gained $78.3 million in total investments, according to Pitchbook data.

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4 Houston-area institutions get $8M for cancer research facilities

fighting cancer

Cancer research capabilities in the Houston area just got an $8 million boost.

On Wednesday, May 20, the Cancer Prevention and Research Institute of Texas (CPRIT) awarded $8 million in grants to institutions in Houston and Bryan for the creation or expansion of so-called “core” cancer research facilities.

“Core facilities provide shared access to advanced technology, equipment, and scientific expertise that may not be available at every institution,” CPRIT says. “These core facilities are vital to not only cancer research but also to the study of diseases beyond cancer.”

Houston-area recipients of these $2 million grants are:

A facility at the University of Texas Health Science Center for preclinical support of cancer researchers in Texas to evaluate new safe, effective drugs and drug combinations.
The Accelerator for Cancer Therapeutics, operated by Houston’s Texas Medical Center Foundation. The accelerator helps researchers and startups move innovative cancer treatments from the lab to clinical trials.
Rice University’s Genetic Design & Engineering Center in Houston. The center enables researchers to collaborate on studies of custom DNA for cancer treatment.
A facility at the Texas A&M University System’s Health Science Center in Bryan that aims to speed up the development of cancer therapies.

In addition to those grants, the University of Texas M.D. Anderson Cancer Center, Methodist Hospital Research Institute, Baylor College of Medicine, and Rice University shared $21 million to recruit cancer researchers from other institutions.

The largest of those grants—totalling $4 million—went to M.D. Anderson for the recruitment of renowned cancer researcher Andre Nussenzweig from the National Institutes of Health. His research focuses on how DNA damage and faulty DNA repairs lead to cancer.

Here are the totals for the other CPRIT grants awarded in the Houston area:

$12.8 million to Houston-based Indapta Therapeutics for the development of an off-the-shelf therapy that naturally kills cancer cells, combined with an immunity-targeting agent for a type of leukemia.
$11.1 million to MD Anderson, including $5 million for a statewide platform to improve long-term health outcomes in adolescents and young adults who survived cancer.
$8.4 million to Baylor College of Medicine, including $4.8 million for two training programs for cancer researchers.
$6.25 million to UT Health Houston, including $4 million for a biomedical informatics and genomics training program for cancer researchers.
$4.4 million to the Texas A&M Health Science Center’s Houston campus, including $2.4 million for a cancer therapeutics training program.
$2.75 million to Rice, including $250,000 for a study of ovarian cancer.
$2 million to Houston-based March Biosciences for the development of a targeted therapy for treating T-cell lymphoma.
$1.15 million to the University of Houston, including $900,000 for a platform for detection of lung cancer.
$900,000 to Texas A&M in Bryan to conduct clinical drug trials in rural and underserved communities around the state.
$800,000 to Houston- and Israel-based Xerient Pharma for the development of an oral form of a cell-protecting drug called amifostine to protect the upper GI tract from radiation damage during pancreatic cancer treatment.
$659,000 to Missouri City-based OmniNano Pharmaceuticals for the development of a two-drug combination to treat the most common form of pancreatic cancer.
$250,000 to the University of Texas Medical Branch at Galveston for a novel therapeutic to prevent colitis-related colorectal cancer.

Axiom Space launches Japanese subsidiary, names leadership

Axiom Space is setting up a Japanese subsidiary to tap into billions of dollars worth of business opportunities in the vast Asia-Pacific region. The company’s new office in Japan will open July 1.

“For the Asia-Pacific region, an Axiom Space presence in Japan means a long-term, direct path to low-Earth orbit for research, for industry, for astronauts, and a partner committed to building that future together with Japan,” Jonathan Cirtain, president and CEO of Axiom Space, said in a news release.

Asia-Pacific spaceflight leaders include Japan, China, India and South Korea.

Until committing to the Asia-Pacific subsidiary, Axiom focused primarily on the U.S. market for space exploration equipment, technology and services. Axiom is building the successor to the International Space Station (ISS), and it provides human spaceflight services and develops next-generation spacesuits.

Fortune Business Insights estimates the Asia-Pacific market for space technology was valued at $155.3 billion in 2025.

“The region is rapidly expanding due to rapidly expanding government space programs, increasing private sector participation, and rising demand for satellite services across densely populated regions,” says Fortune Business Insights, a market research firm.

The region’s combination of strategic investments, market demand and emerging entrepreneurial systems positions Asia-Pacific “for the fastest growth in the global market,” Fortune Business Insights says.

The market research firm pegs the U.S. market for space technology at $251.8 billion in 2025, making it the world’s largest player in that sector.

Veteran Japanese astronaut Koichi Wakata will lead Axiom Space Japan as chief technology officer in the Asia-Pacific region. The Japanese subsidiary will work with government agencies, research institutions, and industrial partners in Japan to expand hardware development and manufacturing, microgravity research and orbital computing.

Wakata was the Japanese space agency’s first program manager for ISS and the station’s first Japanese commander. He also contributed to the construction of ISS, including the Japanese experiment module Kibo. Wakata retired from the Japanese agency, JAXA, in March 2024.

“Japan intends to remain a leading nation in human space exploration post-ISS, and Japanese industry and academia are ready to play a central role in the commercial era,” Axiom Space said in the release. “Axiom Space Japan is how the company will meet that ambition with a long-term, on-the-ground presence.”

Houston investment firm closes $105M energy venture fund

seeing green

Houston-based investment firm Veriten has announced the initial close of its second flagship energy venture fund with more than $105 million in capital commitments.

Fund II will build on Veriten’s initial fund and aim to support “scalable technology solutions for energy, power and industrial applications,” according to a company news release.

"Our differentiated network, research-driven process, and first principles approach to investing are having an impact across multiple verticals including traditional energy, electrification, and industrial technology. Fund II builds on that platform,” John Sommers, partner, investments at Veriten, added in the release. “In this environment, the differentiator isn't capital – it's all about connectivity, deep sector expertise, and an economically-driven approach. As new technologies and approaches develop at breakneck speed, the need for more reliable, affordable energy and power continues to grow dramatically. The current backdrop accentuates the need for Veriten's solution."

Veriten is supported by over 50 strategic partnerships in the energy, power, industrial and technology sectors, including major players like Halliburton and Phillips 66.

"Veriten continues to build a differentiated platform at the intersection of energy, technology and industry expertise," Jeff Miller, chairman and CEO of Halliburton, said in the release. "We were early believers in the team and their ability to identify practical solutions to real challenges across the energy value chain. As all industries increasingly adopt digital tools, automation and AI-enabled technologies to improve performance and execution, we are proud to partner with Veriten again to help accelerate high-impact solutions across the broader energy landscape."

Veriten closed its debut fund, NexTen LP, of $85 million in committed capital in October 2023. It was launched in January 2022 by Maynard Holt, co-founder and former CEO of the energy investment bank Tudor, Pickering, Holt & Co.

It has invested in Houston-based AI-powered electricity analytics provider Amperon and led a $12 million Seed 2 funding round for Houston-based Helix Technologies to scale manufacturing of its energy-efficient commercial HVAC add-on earlier this year. In the past year it has contributed to funding rounds for San Francisco-based Armada and Calgary-based Veerum.

Veriten also named Nick Morriss as its new managing director earlier this month. Morriss most recently served as vice president of business development at next-generation nuclear technology company Natura Resources and spent nearly 20 years at NOV Inc.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

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