Episode 123: Bioengineering in Microgravity with Dr. Micheal Roberts ISS/CASIS

For 25 years, humans have continuously manned the International Space Station. Today that same microgravity environment is becoming a laboratory for building human tissue, studying disease, and manufacturing biological products that can be impossible to make on Earth. Dr. Micheal Roberts, Chief Scientific Officer of the International Space Station National Laboratory, explains how on Earth, gravity forces bioprinted tissue to collapse before it can support itself. In microgravity that constraint disappears and biological structures hold their shape with no scaffold at all. This single physical fact has turned the ISS into the proving ground for manufacturing thick, vascularized human tissue. He traces the arc from space-grown protein crystals to Redwire’s BioFabrication Facility and Auxilium Biotechnologies’ nerve-repair implants, which printed eight devices in roughly two hours in orbit. With astronauts supporting 200 to 400 experiments during a typical six-month mission and the ISS approaching its planned end around 2030, Dr. Micheal Roberts makes the case for a new generation of commercial platforms that could turn low Earth orbit into a biomanufacturing hub. Now is the moment.

⚠️ Disclaimer:
This podcast is for educational and informational purposes only. The views expressed do not constitute engineering, medical, or financial advice. The technologies and procedures discussed may not be commercially available or suitable for every case. Always consult with a qualified professional.

About Our Guest:

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Dr. Michael Roberts is the Chief Scientific Officer of the International Space Station National Laboratory and Vice President at the Center for the Advancement of Science in Space (CASIS). Before joining CASIS in 2013, Michael worked as a microbial ecologist, principal investigator, and research group lead at the Kennedy Space Center. Prior to arriving at NASA-KSC in 1999, Michael completed an undergraduate degree in biology at Maryville College, a doctorate in microbiology at Wesleyan University and post- doctoral research at the Center for Microbial Ecology at Michigan State University. Lowry holds a PhD in biomedical engineering from Tulane University, sits on the 3Rs Collaborative and FNIH Validation and Qualification Network, and has authored 6 patents, 20+ publications, and 100+ scientific presentations.

Key Topics

A microbiologist’s unexpected journey from Kennedy Space Center to the ISS National Laboratory

Why 25 years of continuous human presence in space have made this the right moment for biomanufacturing

Protein crystallization and the origins of biological manufacturing in space

The scaffold problem and microgravity’s unique advantages for 3D tissue printing

Engineering bioprinters for space, from heat dissipation to fluid separation and microfluidics

Redwire’s BioFabrication Facility, Auxilium’s DLP technology, and the move beyond extrusion

What happens to cells, organoids, and tissues when gravity is removed

How microgravity can accelerate models of aging, cancer, and disease progression

NASA’s  vascular tissue challenge and the race to create thick, functional, vascularized tissue

Wake Forest’s liver and kidney bioprinting work and new collaborations emerging from space research

The partnerships bringing together NASA, academia, startups, pharma, and government

Life after 2030 and the transition from the ISS to commercial space platforms

Varda, Starfall, and falling launch costs are reshaping access to low Earth orbit

The potential of space-based research for aging, cancer, longevity, and regenerative medicine

The biggest barriers to space biomanufacturing, including cost, logistics, regulation, and quality control

Orbital Edge, startup funding, and opportunities for the next generation of space entrepreneurs

Timestamps:

0:00 Welcome And Guest Introduction

3:51 From Microbes To Managing ISS Science

6:14 Why Space Biomanufacturing Now

9:55 Protein Crystals And Better Drug Design

15:35 Why Bioprinting Changes In Microgravity

24:24 Engineering Printers For Space Reality

27:59 Organoids And 3D Cell Culture Gains

35:25 Vascularization Challenge And Thick Tissues

39:45 Partnerships That Make The Ecosystem Work

46:06 Post ISS Platforms And Lower Launch Costs

49:34 Biggest Blockers Cost Logistics Regulation

54:35 Orbital Edge And Advice For Builders

56:40 Closing Thanks And Disclaimer

Resources

🔗 Contact Dr. Michael Roberts

🔗 Space Biomanufacturing, Research & Companies

🔗 Learn More About 3D Bioprinting from 3DHEALS!

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