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."

The study will look at improving sustainability within George Bush Intercontinental Airport in Houston. Photo courtesy of Airbus

Houston organizations launch study to explore hydrogen-powered travel

sustainability takes flight

A few major players have teamed up to look into making air travel more sustainable — and it's all happening in Houston.

The Center for Houston’s Future, Airbus, and Houston Airports have signed a memorandum of understanding intended to study the “feasibility of a hydrogen hub at George Bush Intercontinental Airport." The study, which will conclude in March of 2025, will include the participants that will collaborate ways to rethink how their infrastructures could be designed and operated to reduce an overall environmental footprint, and lead to hydrogen-powered aircrafts like the ones Airbus plans to bring to fruition by 2035.

In 2020, Airbus debuted its ZEROe hydrogen-powered aircraft project. The “Hydrogen Hub at Airports'' concept by Airbus unites key airport ecosystem players to develop ways to decarbonize all airport-associated infrastructure with hydrogen. The study will include airport ground transportation, airport heating, end-use in aviation, and possibly ways to supply adjacent customers in transport and local industries.

The use of hydrogen to power future aircraft aims to assist in eliminating aircraft CO2 emissions in the air, and also can help decarbonize air transport on the ground. With Houston being such a large city, and a destination for some many visiting on business, the Houston airports was an easy spot to assign the study.

"Houston’s airports are experiencing tremendous growth, connecting our city to the world like never before,” Jim Szczesniak, the aviation director for the city of Houston, says in a news release. “As we continue to expand and modernize our facilities, participating in this sustainability study is crucial. Continuing to build a sustainable airport system will ensure a healthy future for Houston, attract top talent and businesses, and demonstrate our commitment to being a responsible global citizen.

"This study will provide us with valuable insights to guide our development and position Houston as a global leader in sustainable aviation innovation for generations to come.”

The CHF was a founding organizer of the HyVelocity Hydrogen Hub, which was selected by the U.S. Department of Energy as one of seven hydrogen hubs in the nation, and will work in the Houston area and the Gulf Coast. The HyVelocity Hydrogen Hub is eligible to receive up to $1.2 billion as part of a Bipartisan Infrastructure Law funding to advance domestic hydrogen production.

“The Center for Houston’s Future is pleased to have played a crucial role in bringing together the partners for this study,” Brett Perlman, the center's outgoing CEO and president, adds. “With Houston’s role as the world’s energy capital, our record of energy innovation and desire to lead in the business of low-carbon energy, Houston is the perfect place to develop our airports as North American clean hydrogen pioneers.”

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Rice Alliance names Houston healthtech exec as first head of platform

new hire

The Rice Alliance for Technology and Entrepreneurship has named its first head of platform.

Houston entrepreneur Laura Neder stepped into the newly created role last month, according to an email from Rice Alliance. Neder will focus on building and growing Houston’s Venture Advantage Platform.

The emerging platform, which is being promoted by Rice Alliance and the Ion, aims to connect founders with the "people, capital and expertise they need to scale."

"I’ve spent a lot of time thinking about what it takes to make an innovation ecosystem more navigable, more connected, and more useful for founders," Neder said in a LinkedIn post. "I’m grateful for the opportunity to do that work at Rice Alliance, alongside a team with a long history of supporting entrepreneurship and innovation."

"Houston has the talent, institutions, and industry base to create real advantage for founders," she added. "I’m looking forward to listening, learning, and building stronger pathways across the ecosystem."

Neder most recently served as CEO of Houston-based Careset, where she helped bring the Medicare data startup to commercialization. Prior to that, Neder served as COO of Houston-based telemedicine startup 2nd.MD, which was acquired for $460 million by Accolade in 2021.

"Laura brings a rare combination of founder empathy, operational experience and ecosystem leadership," Rice Alliance shared.

Neder and Rice Alliance also shared that the organization is hiring developers to design the new Venture Advantage Platform. Learn more here.

Elon Musk's SpaceX files initial paperwork to sell shares to the public

Incoming IPO

Elon Musk's space exploration company has filed preliminary paperwork to sell shares to the public, according to two sources familiar with the filing, a blockbuster offering that would likely rank as the biggest ever and could make its founder the world's first trillionaire.

A SpaceX IPO promises to be one of the biggest Wall Street events of the year, with several investment banks lining up to help raise tens of billions to fund Musk's ambitions to set up a base on the moon, put datacenters the size of several football fields in orbit and possibly one day send a man to Mars.

The sources spoke on condition of anonymity because they were not authorized to talk publicly about the confidential registration with the Securities and Exchange Commission.

SpaceX did not respond immediately to a request for comment.

Exactly how much SpaceX plans to raise has not been disclosed but the figure is reportedly as much as $75 billion. At that level, the offering would easily eclipse the $29 billion that Saudi Aramco raised in its IPO in 2019.

The offering, coming possibly in June, could value all the shares of SpaceX at $1.5 trillion, nearly double what the company was valued in December when some minority owners sold their stakes, according to research firm Pitchbook, before an acquisition that increased its size.

Musk owns 42% of the SpaceX now, according to Pitchbook, though that figure will change with the IPO when new owners are issued shares. In any case, he is likely to pierce the trillion dollar mark because he is already close. Forbes magazine estimates Musk's net worth at roughly $823 billion.

In addition to making reusable rockets to hurl astronauts and hardware into orbit, SpaceX owns Starlink, the world’s largest satellite communications company. The company also recently brought under its roof two other Musk businesses, social media platform X, formerly Twitter, and artificial intelligence business, xAI, in a controversial transaction because both the seller and the buyer were controlled by him.

SpaceX has become the biggest commercial launch company in its industry, responsible for sending payloads into orbit for customers across the globe, but has also benefited from big taxpayer spending. That has raised conflicts of interest issues given that Musk was the biggest donor to President Donald Trump's campaign and is still a big backer.

In the past five years, SpaceX won $6 billion in contracts from NASA, the Defense Department and other U.S. government agencies, according to USAspending.gov.

Among current SpaceX owners is Donald Trump Jr, the president's oldest son. He owns a shares through 1789 Capital. That venture capital firm made him a partner shortly after his father won the presidency for a second time and has been buying up federal contractors seeking to win taxpayer money ever since.

The White House and Trump himself have repeatedly denied there are any conflicts of interest between his role as president and his family's businesses.

8+ can't-miss Houston business and innovation events in April

where to be

Editor’s note: Houston's weeklong innovation festival kicks off April, followed by Rice University's globally recognized pitch competition returning for its 26th year. Plus, find coworking pop-ups, industry meetups, pitch battles and even a crawfish boil on the calendar. Here’s what not to miss and how to register. Please note: this article might be updated to add more events.

March 30-April 4 — H-Town Roundup

Celebrate innovation, entrepreneurship and collaboration at Houston Exponential's sixth-annual H-Town Roundup. During the free event series, previously known as Houston Tech Rodeo, attendees can expect insightful talks, workshops and networking events at venues across the city.

This event began March 30. Register here.

April 2 — Industrious Coworking Day

Enjoy a complimentary day of cowering at Industrious and network with professionals at the Ion. Breakfast, snacks, wifi and workspace tours are included. Following the cowering day, Industrious will host happy hour at Second Draught from 4-6 p.m.

This event is Thursday, April 2, from 8:30 a.m.-5 p.m. at the Ion. Register here.

April 2 — Technology Summit for Women

The fourth annual Women in Tech Cummil will feature speakers across three core tracks: Transformation + Digital strategy, Cyber + Risk + Resilience, and AI in Practice. Pearl Chu, director of technical domains and university relations at SLB, will give the opening remarks. Other panelists come from CenterPoint Energy, BP, Technip Energies and other leading companies.

This event is Thursday, April 2, from 2-5 p.m. at the Ion. Register here.

April 8 — Veterans Business Battle

Hear pitches from veterans and entrepreneurs as they compete for more than $10 million in investments at Rice Businesses' 12th annual Veterans Business Battle. This year, the two-day event will also feature a Small Business Expo, which invites Houston-based, veteran-owned businesses to participate in education, networking and the opportunity to showcase their business. Moonshots Capital and Mercury Fund will also host a fireside chat.

This event begins Wednesday, April 8, at 11 a.m. at the Ion. Click here to register.

April 9-11 — Rice Business Plan Competition

The Rice Alliance for Technology and Entrepreneurship will host the 26th annual Rice Business Plan Competition this month. Forty-two student-led teams from around the world, including one team from Rice, will present their plans before more than 300 angel, venture capital, and corporate investors to compete for more than $1 million in prizes.

This event begins Thursday, April 9. Find more information here.

April 10 — BioHouston Chili Cookoff

Connect with Houston's life sciences community at BioHouston's 21st annual chili cookout. This event is geared toward startup founders, researchers and industry veterans alike.

This event is Friday, April 10, from noon-4 p.m. at Bayou City Event Center. Register here.

April 14 — Mercury Fund Day at the Ion: Agentic Commerce

Don’t miss the latest installment of Mercury Fund Day at the Ion, previously known as Software Day. The recurring monthly event features office hours (by application), a keynote and networking opportunities. This month's topic focuses on agentic commerce.

This event is Tuesday, April 14, from 3:30-7 p.m. at the Ion. Register here.

April 19 – UH Energy Industry Crawfish Boil

Head to the UH Cullen College of Engineering Green Space for the 35th annual UH Energy Industry Crawfish Boil. The event will include a student showcase, STEM activities, a kids zone, live music, networking and, of course, crawfish. Proceeds from the event will support the multidisciplinary capstone fund that aims to increase professional readiness for Cullen College engineering and technology students.

This event is Sunday, April 19, from 1-5 p.m. at the Cullen College of Engineering Green Space. Find more information here.

April 24 — Rice Business Healthcare Conference

Leading experts, innovators and the next generation of healthcare leaders will converge at the Rice Business Healthcare Conference. Hosted by the Rice Business Healthcare Association, the conference will explore AI's potential impact on the sector.

This event is Friday, April 24, from 8 a.m.-2 p.m. at McNair Hall on Rice University's campus. Find more information here.

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