Here's what you can expect at Houston's Comicpalooza this weekend from esports to Game of Thrones stars

Bend the knee

Comicpalooza takes place Friday, May 9, to Sunday, May 12. Courtesy of Comicpalooza

People from around the world will be flocking to downtown Houston by the thousands, and not just for the Astros and the Rockets. The 11th annual Comicpalooza is taking over the George R. Brown Convention Center from Friday, May 10, to Sunday, May 12.

"This major super block in downtown will be absolutely electric this weekend," Michael Heckman, Comicpalooza president, tells InnovationMap.

Last year, the convention attracted over 50,000 people from 47 states and 17 countries, and it made an economic impact of over $20 million, Heckman says. This year, with the help of Game of Thrones stars and an inaugural ESPN event, Comicpalooza should surpass last year's accomplishments.

Here's what you can expect from this weekend.

A crowd at the panel that has two Game of Thrones actresses

Emilia Clarke (left) plays Daenerys in Game of Thrones, and Nathalie Emmanuel plays her adviser and friend, Missandei. Photos courtesy of Comicpalooza

A panel on Saturday morning at 11 am will have two Game of Thrones stars — Emilia Clarke (Daenerys) and Nathalie Emmanuel (Missandei). The panel is sure to attract the masses, and the two actresses are major gets by the organization.

"To be able to get Emilia Clarke in the middle of the final season of Game of Thrones, with only two episodes to go — the hype has been unbelievable," Heckman says. "To be able to have a pop culture phenomenon like that come here to Houston — and it will be her first fan event. She's done the San Diego Comic Con, but that was more of a media event."

Both actresses also have autograph visits available for purchase. Clarke's are sold out online, but some opportunities will be made available day of.

The first ever ESPN collegiate esports competition

ESPN's inaugural esports competition for college students is premiering at Comicpalooza. Jamie McInall/Pexels

For the first time ever, ESPN is having a collegiate esports championship and chose Houston to be the place for the finals.

"We've understood the value of [esports] for Comicpalooza for a number of years. ESPN is making a big investment — it's their first ever event of this nature, but it won't be their last," Heckman says.

Students from hundreds of schools have competed to make it to the semifinals and championship in Houston, and scholarships are on the line. The weekend will have 22 teams across five video games — Hearthstone, Heroes of the Storm, Overwatch, StarCraft II, and Street Fighter V — according to ESPN. To read more about the competition, click here.

Makers on display

Anyone can check out the Comicpalooza Maker's Space — there's even a place to fix any cosplay wardrobe malfunctions. Photo via comicpalooza.com

Calling all makers — professionals or wannabes. Comicpalooza's Maker's Space is open to cosplayers, artists, engineers, scientists and everyone in between who wants to create and build using old and new technology, from small electrical parts to towering 3D printers and Lego masterpieces.

"What a lot of people don't know is there are so many interesting aspects to Comicpalooza — from literature tracks to a film festival to a makerspace," Heckman says. "There are hundreds of exhibitors on the expo showfloor, but there's an area carved out for makers."

A party on the promenade

Free concert anyone? Photo via comicpalooza.com

From 6 to 10 pm on Saturday, Avenida Houston will be transformed into an after party put on by Saint Arnold's and headlined by Icona Pop. It's free to attend, and you can get more info here.

VIPs all around

It's not just the Game of Thrones people being featured. Photos via comicpalooza.com

Comicpalooza attendees can grab photos with or autographs from over 30 different actors across major franchises — like Star Trek, Walking Dead, and so much more.

The list of actors is as follows: Emilia Clarke, Nathalie Emmanuel, Grant Gustin, Wilmer Valderrama, Dan Fogler, Gates McFadden, Michael Dorn, John Wesley Shipp, Peter Serafinowicz, Griffin Newman, Yara Martinez, Brendan Hines, Scott Speiser, Jeremy Davies, Andrew Divoff, Mira Furlan, Erick Avari and more.

Michael Heckman shares about some exciting new aspects of Houston's 11th annual Comicpalooza. Courtesy of Houston First

Comicpalooza expects another record year, says Houston First Corp. executive

Featured Innovator

Eleven years ago, Comicpalooza was a small event held out in Katy. Over the past few years, with the help of Houston First Corp., the three-day conference has grown to be so big, the 2019 programming will spill out of George R. Brown Convention Center and into Discovery Green, and attract over 50,000 attendees.

"These comic conventions used to just be for the hardcore pop culture fans. What we've attempted to do is make it so there's something for everyone," says Michael Heckman, Comicpalooza president and senior vice president at Houston First. "As a casual pop culture fan, there's a lot to see and do."

The festivities take place Friday, May 10, to Sunday, May 12, and include some big name events. Two Game of Thrones stars — Emilia Clarke (Daenerys Targaryen) and Nathalie Emmanuel (Missandei) — will be on a panel, and ESPN will host its first collegiate esports competition.

Heckman tells InnovationMap more about these big events and how Comicpalooza has transformed over the years.

InnovationMap: How the event has grown over the past decade? 

Michael Heckman: We've really worked hard to increase the impact of the event. There's a lot of out of town visitors that do come in — it has north of a $20 million economic impact every year. When you look at an event that is held during a traditionally slow period of time, it's a really big deal for the hotels and restaurants. The other part about it is when you're able to bring big stars to Houston, they're tweeting about it and posting Instagram stories about it. It does a lot to shine a spotlight on Houston's reputation and image.

IM: What are you most excited about for this year?

MH: It's a big sprawling event that takes place across all 1.2 million square feet of GRBCC. I'm excited about a few things. First, we've got the two folks from Game of Thrones. To be able to get Emilia Clarke in the middle of the final season of Game of Thrones, with only two episodes to go — the hype has been unbelievable. To be able to have a pop culture phenomenon like that come here to Houston — and it will be her first fan event. She's done the San Diego Comic Con, but that was more of a media event.

We've also got the ESPN Collegiate Esports Championship held here. We've done esports and gaming over the past few years, but it's a growth area for the event. To be able to hold that event with dozens of championships from around the country for this inaugural event is very exciting.

What a lot of people don't know is there are so many interesting aspects to Comicpalooza — from literature tracks to a film festival to a makerspace. There are hundreds of exhibitors on the expo showfloor, but there's an area carved out for makers. We have NASA, a cultural arts avenue, there's something for everyone. We're really looking forward to a blockbuster year.

IM: What did it mean for Houston to get ESPN’s collegiate esports program? 

MH: Esports is rapidly growing. That marketplace is developing very quickly. A lot of people and a lot of cities are figuring out what that means. We've understood the value of it for Comicpalooza for a number of years. ESPN is making a big investment — it's their first ever event of this nature, but it won't be their last.

IM: How did it come about?

MH: We've been talking to a number of folks across the landscape about how to best utilize the space that we have at GRBCC and find an opportunity that was a good fit for us. A couple people we were talking to out on the West Coast who connected us to the ESPN people, who happen to be the same division of ESPN that partners with the Houston Texans on a couple things. There's some synergies there, and they're familiar with Houston.

IM: How would you describe Comicpalooza's economic impact on Houston?

MH: Around 20 to 30 percent for the audience of Comicpalooza comes from outside of Houston. Last year, we had attendees from 47 states and 17 countries. It gives great exposure to the city, and the money they leave behind is valuable from an economic impact perspective. We think our numbers will be somewhat similar to last year.

If you look at the long term vision of what this could be, we have a beautiful campus for this event. We've moved some of our programming outside GRBCC onto the Avenida Plaza that connects to Discovery Green. If we have a full campus-wide event, that's something that's highly attractive. You grow that attendance, get up to 70 or 80 thousand people — that's a mega event. It's a snowball — once you get it started and then it just takes off. We're not there yet, but we've had really smart growth.

IM: How is the city as a whole preparing for the event?

MH: Houston's really good about handling events. It takes everything from the fire department to the police department and traffic control and 700 event volunteers — over 2,000 shifts. It's such a big footprint — it's kind of all hands on deck. It also looks like we'll have Astros at home and the Rockets playing game six of the playoffs at home. This major super block in downtown will be absolutely electric this weekend.

IM: What other events are you looking to bring to Houston?

MH: We'll always be chasing our conventions we have here. Our convention sales team looks to break another record this year. We have a lot of major events upcoming — from the college football playoff to the men's basketball Final Four, and we'll eventually pursue another Super Bowl. As we look to develop our portfolio of events that we manage here, there's a lot of opportunities here for events centered around innovation. There's a lot of talk around how Houston needs to have a better reputation for innovation. We've got aerospace, medical, oil and gas — what's an event we can create or partner on that could highlight Houston's innovation.

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Portions of this interview have been edited.

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7 innovative startups that are leading the energy transition in Houston

meet the finalists

Houston has long been touted as the energy capital of the world, and it's now it's also a leading player in the energy transition — home to numerous startups and innovators working toward a cleaner future.

As part of the 2025 Houston Innovation Awards, our Energy Transition Business category honors innovative startups that are providing solution within renewables, climatetech, clean energy, alternative materials, circular economy, and more.

Seven energy transition companies have been named finalists for the 2025 award. They range from a spinoff stimulating subsurface hydrogen from end-of-life oil fields to a company converting prickly pear cactus biogas into energy.

Read more about these climatetech businesses, their founders, and their green initiatives below. Then join us at the Houston Innovation Awards on Nov. 13 at Greentown Labs, when the winner will be unveiled at our live awards ceremony.

Tickets are now on sale for this exclusive event celebrating all things Houston Innovation.

Anning Corporation

Clean energy company Anning Corporation is working to develop geologic hydrogen, a natural carbon-free fuel, using its proprietary stimulation approaches and advanced exploration modeling. The company said that geologic hydrogen has the potential to be the lowest-cost source of reliable baseload electricity in the U.S.

The company was founded by CEO Sophie Broun in 2024 and is a member of Greentown Labs. Last month, it also announced that it was chosen to participate in Breakthrough Energy’s prestigious Fellows Program. Anning raised a pre-seed round this year and is currently raising a $6 million seed round.

Capwell Services

Houston-based methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the U.S. and Canada. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by current CEO Andrew Lane. It has since participated in programs with Greentown Labs and Rice Clean Energy Accelerator. The company moved to Houston in 2023 and raised a pre-seed round. It has also received federal funding from the DOE. Capwell is currently piloting its commercial unit with oil and gas operators.

Deep Anchor Solutions

Offshore energy consulting and design company Deep Anchor Solutions aims to help expedite the adoption of floating offshore energy infrastructure with its deeply embedded ring anchor (DERA) technology. According to the company, its patented DERA system can be installed quietly without heavy-lift vessels, reducing anchor-related costs by up to 75 percent and lifecycle CO2 emissions by up to 80 percent.

The company was founded in 2023 by current CEO Junho Lee and CTO Charles Aubeny. Lee earned his Ph.D. in geotechnical engineering from Texas A&M University, where Aubeny is a professor of civil and environmental engineering. The company has participated in numerous accelerators and incubators, including Greentown Labs, MassChallenge, EnergyTech Nexus LiftOff, and others. Lee is an Activate 2025 fellow.

Eclipse Energy

Previously known as Gold H2, Eclipse Energy converts end-of-life oil fields into low-cost, sustainable hydrogen sources. It completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen, which is estimated to provide enough clean power to Los Angeles for over 50 years and avoid roughly 1 billion metric tons of CO2 equivalent.

Eclipse is a spinoff of Houston biotech company Cemvita. It was founded in 2022 by Moji Karimi (CEO and chairman of Cemvita), Prabhdeep Sekhon (CEO of Eclipse), Tara Karimi, and Rayyan Islam. The company closed an $8 million series A this year and has plans to raise another round in 2026.

Loop Bioproducts

Agricultural chemical manufacturing company Loop Bioproducts leverages the physiology of prickly pear cactus grown in Texas to produce bioenergy, food, and remediate industrial wastewater streams. The company uses its remote sensing technology, proprietary image-based machine learning model, and R&D innovation to capture raw biogas from the cactuses and is focused on scaling cactuses as an industrial crop on land.

Rhiannon Parker founded Loop Bioproducts in 2023.

Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers, and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and lead engineer Trey Sheridan, the company has raised just under $1 million in capital and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and converts them into pure chemicals and fuels that are free of carbon emissions onsite, eliminating the need for transport, storage, and permitting. The company was founded around innovations developed by Rice University associate professor Haotian Wang.

The company was selected for the Chevron Technology Ventures’ catalyst program, Greentown Labs, NSF I-Corps and was part of the first cohort of the Activate Houston program. It won first place at the 2024 startup pitch competition at CERAWeek. Solidec was founded in 2023 by Wang, who serves as chief scientist, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round earlier this year.

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The Houston Innovation Awards program is sponsored by Houston Community College, Houston Powder Coaters, FLIGHT by Yuengling, and more to be announced soon. For sponsorship opportunities, please contact sales@innovationmap.com.

Rice University team develops eco-friendly method to destroy 'forever chemicals' in water

clean water research

Rice University researchers have teamed up with South Korean scientists to develop the first eco-friendly technology that captures and destroys toxic “forever chemicals,” or PFAS, in water.

PFAS have been linked to immune system disruption, certain cancers, liver damage and reproductive disorders. They can be found in water, soil and air, as well as in products like Teflon pans, waterproof clothing and food packaging. They do not degrade easily and are difficult to remove.

Thus far, PFAS cleanup methods have relied on adsorption, in which molecules cling to materials like activated carbon or ion-exchange resins. But these methods tend to have limited capacity, low efficiency, slow performance and can create additional waste.

The Rice-led study, published in the journal Advanced Materials, centered on a layered double hydroxide (LDH) material made from copper and aluminum that could rapidly capture PFAS and be used to destroy the chemicals.

The study was led by Rice professor Youngkun Chung, a postdoctoral fellow under the mentorship of Michael S. Wong. It was conducted in collaboration with Seoktae Kang, professor at the Korea Advanced Institute of Science and Technology, and Keon-Ham Kim, professor at Pukyung National University, who first discovered the LDH material.

The team evaluated the LDH material in river water, tap water and wastewater. And, according to Rice, that material’s unique copper-aluminum layers and charge imbalances created an ideal binding environment to capture PFAS molecules.

“To my astonishment, this LDH compound captured PFAS more than 1,000 times better than other materials,” Chung, lead author of the study and now a fellow at Rice’s WaTER (Water Technologies, Entrepreneurship and Research) Institute and Sustainability Institute, said in a news release. “It also worked incredibly fast, removing large amounts of PFAS within minutes, about 100 times faster than commercial carbon filters.”

Next, Chung, along with Rice professors Pedro Alvarez and James Tour, worked to develop an eco-friendly, sustainable method of thermally decomposing the PFAS captured on the LDH material. They heated saturated material with calcium carbonate, which eliminated more than half of the trapped PFAS without releasing toxic by-products.

The team believes the study’s results could potentially have large-scale applications in industrial cleanups and municipal water treatments.

“We are excited by the potential of this one-of-a-kind LDH-based technology to transform how PFAS-contaminated water sources are treated in the near future,” Wong added in the news release. “It’s the result of an extraordinary international collaboration and the creativity of young researchers.”

Axiom Space announces new CEO amid strategic leadership change

new leader

Six months after promoting Tejpaul Bhatia from chief revenue officer to CEO, commercial space infrastructure and human spaceflight services provider Axiom Space has replaced him.

On Oct. 15, Houston-based Axiom announced Jonathan Cirtain has succeeded Bhatia as CEO. Bhatia joined Axiom in 2021. Cirtain remains the company’s president, a role he assumed in June, according to his LinkedIn profile.

In a news release, Axiom said Cirtain’s appointment as CEO is a “strategic leadership change” aimed at advancing the company’s development of space infrastructure.

Axiom hired Cirtain as president in June, according to his LinkedIn profile. The company didn’t publicly announce that move.

Kam Ghaffarian, co-founder and executive chairman of Axiom, said Cirtain’s “proven track record of leadership and commitment to excellence align perfectly with our mission of building era-defining space infrastructure that will drive exploration and fuel the global space economy.”

Aside from praising Cirtain, Ghaffarian expressed his “sincere gratitude” for Bhatia’s work at Axiom, including his leadership as CEO during “a significant transition period.”

Bhatia was promoted to CEO in April after helping Axiom gain more than $1 billion in contracts, Space News reported. He succeeded Ghaffarian as CEO. Axiom didn’t indicate whether Bhatia quit or was terminated.

Cirtain, an astrophysicist, was a senior executive at BWX Technologies, a supplier of nuclear components and fuel, for eight years before joining Axiom. Earlier, Cirtain spent nearly nine years in various roles at NASA’s Marshall Space Flight Center in Huntsville, Alabama. He previously co-founded a machine learning company specializing in Earth observation.

“Axiom Space is pioneering the commercialization of low-Earth orbit infrastructure while accelerating advancements in human spaceflight technologies,” Cirtain said. “I look forward to continuing our team’s important work of driving innovation to support expanded access to space and off-planet capabilities that will underpin the future of space exploration.”

Among other projects, Axiom is developing the world’s first commercial space station, creating next-generation spacesuits for astronauts and sending astronauts on low-Earth orbit missions.

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