Innovate! NASA’s leading-edge fellows share their amazing projects

Episode Summary

Executive Summary: This episode centers on NASA’s NIAC program and its 2022 symposium, spotlighting ambitious early-stage concepts that could reshape space exploration and also deliver Earth benefits. Matt Kaplan interviews fellows working on fungi-based habitats, asteroid-tracking telescope networks, kilometer-scale space structures, hybrid exoplanet observatories, lunar radio telescopes, Pluto landing systems, advanced spacesuits, and diffractive solar sails, followed by Bruce Betts’ sky update and DART’s major planetary-defense breakthrough.

Main Topics: NIAC program overview and symposium format (Priority: 5/5): Program executive Michael Lapointe explains NIAC’s three phases, competitiveness, and purpose: funding visionary NASA concepts and bringing fellows together in person to spark collaboration. Fungal architecture and Earth spin-offs (Priority: 5/5): Lynn Rothschild describes mycotecture—fungi-based composites for habitats and structures—along with ISS testing, radiation resistance, and real-world uses like refugee shelters and sustainable construction. Asteroid detection and orbital debris tracking (Priority: 5/5): Joel Sercel presents TransAstra’s Sutter telescope system, designed to find low-delta-V asteroids and track spacecraft and debris beyond the Moon using inexpensive hardware plus advanced software. Very large deployable space structures (Priority: 4/5): Zach Manchester and Jeff Lipton discuss kilometer-scale structures that could enable artificial gravity, huge telescopes, or solar power satellites, with emphasis on deployment, joints, and manufacturability. Exoplanet imaging with a hybrid observatory (Priority: 5/5): John Mather proposes pairing a giant ground telescope with an orbiting starshade to observe Earth-like exoplanets, reducing cost and mass while leveraging citizen-science design challenges. Lunar far-side radio astronomy and Pluto landing concepts (Priority: 4/5): Septarshi Bandiopadhyay outlines a robotic 350-meter lunar radio telescope to probe the universe’s longest radio wavelengths, while Kerry Nock describes inflatable aerocapture for a low-cost Pluto landing mission and possible emergency escape uses. Spacesuits and diffractive solar sails (Priority: 4/5): Bonnie Dunbar details digitally engineered next-generation spacesuits, and Amber Dubil explains a Phase III diffractive sail concept for solar polar missions and space-weather monitoring.

Key Arguments: NIAC succeeds because it funds high-risk ideas early, before they become conventional missions, and connects people who can build on each other’s concepts. Many NIAC concepts have dual-use or Earth benefits, such as refugee shelters, sustainable materials, debris tracking, and improved space-weather awareness. Fungi-based composites are promising because they are tangible, testable, and can be adapted for habitats, insulation, and structures while potentially offering radiation resilience. Using low-cost commercial telescopes plus smart onboard software can create powerful, redundant systems for asteroid discovery and deep-space debris monitoring. Extremely large space structures are feasible if deployment joints are engineered to be compliant during unfolding and rigid afterward. A ground telescope plus a space-based starshade could make direct imaging of Earth-like exoplanets cheaper than an all-space observatory. The lunar far side is the best place for ultra-long-wavelength radio astronomy because Earth’s ionosphere blocks or corrupts those signals. Inflatable atmospheric braking at Pluto could make landing possible without carrying prohibitive propulsion mass from Earth. Spacesuit design should move from static, fit-limited hardware to a digital-thread approach that supports customization, repair, and manufacturing for long-duration missions. Diffractive solar sails may provide maneuvering advantages that help spacecraft escape the ecliptic and create a solar-polar observatory constellation for continuous space-weather monitoring.

Data Points: NIAC Phase I funding: About $175K for 9 months - Feasibility-study stage described by Michael Lapointe NIAC Phase II funding: $600K for 2 years - More detailed concept maturation and transition planning NIAC Phase III funding: $2 million for 2 years - Rare, high-transition-potential projects needing extra help Typical Phase I submissions: About 300 white papers annually - Lapointe’s description of NIAC competition Phase I invites: About 110 to 120 full proposals - From the initial white paper pool Phase I awards funded: 12 to 16 - Annual funding range for Phase I concepts ISS test duration: About five months - Mycotecture samples tested in space Sutter telescope cost basis: Four to five thousand dollars each - Commercial telescopes used with specialized software Low-cost telescope performance gain: 100 to 1000 times more powerful - TransAstra’s software-enhanced tracking concept Computational reduction: Factors of thousands - Optimized matched filter tracking vs. traditional shift-and-add processing Commercial satellite growth: 100,000 satellites planned in 10 years - Motivation for better debris and traffic awareness Large structure concept scale: About 1 kilometer wide - Proposed space station/structure discussed by Manchester and Lipton Human spin tolerance: About 1 to 2 RPM - Constraint on artificial-gravity rotating habitats Star brightness ratio: The Sun is 10 billion times brighter than Earth - Mather’s explanation of exoplanet imaging difficulty Starshade size: 100 meters across - Hybrid observatory concept for Earth-like exoplanets Ground telescope size: 39 meters across - Largest ground telescopes enabling the hybrid observatory Long radio wavelength cutoff: Longer than 10 meters - Spectrum blocked from Earth and inaccessible without lunar far-side astronomy Lunar radio telescope reflector: 350 meters in diameter - Bandiopadhyay’s robotic far-side telescope design Lunar radio telescope mass: Less than 2 tons - Total system including spacecraft hardware, power, and thermal systems Pluto atmosphere density: About one hundred thousandths of Earth’s atmosphere - Used for atmospheric braking in Nock’s landing concept Pluto landing fuel requirement: About 11 kilograms - Propulsion needed after atmospheric slowdown Sail mission propulsion orbit: Above 60 degrees out of the ecliptic - Needed for full-sky solar polar coverage DART impact effect: Substantial change in Dimorphos’ orbit - Planetary-defense milestone noted by Matt Kaplan and Bruce Betts Cassini anniversary: 25 years since launch - Bruce Betts’ space-history segment Meteor shower rate: Up to 20 meteors per hour - Orionid shower visibility from a dark site

Pivotal Quotes: "the cream of the crop, absolutely" — Michael Lapointe: Describing NIAC fellows and the competitiveness of the program "NIAC is a genius program designed to change the art of the possible" — Joel Sercel: On the value of NIAC support for TransAstra "We are trying to observe what the universe looks like in those regions" — Septarshi Bandiopadhyay: Explaining why far-side lunar radio astronomy matters

Implications: NIAC is acting as a risk-tolerant incubator for breakthrough space tech. Several concepts could mature into missions or commercial products, while also improving Earth infrastructure, disaster readiness, and scientific access to otherwise unreachable parts of the universe.