PODCAST · science
Small Steps, Giant Leaps
by National Aeronautics and Space Administration (NASA)
NASA’s technical workforce put boots on the Moon, tire tracks on Mars, and the first reusable spacecraft in orbit around the Earth. Learn what’s next as they build missions that redefine the future with amazing discoveries and remarkable innovations.
Episodes
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State Hubs: Opening Doors for Technical Students
NASA, through the Office of STEM Engagement, has launched the State Hubs Initiative, awarding $10.5 million to seven institutions with the goal of getting more students into highly skilled manufacturing jobs in the aerospace industry.
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Human Factors: Designing Systems with People in Mind - Part 2 of 2
Dr. Cynthia Null, NASA Technical Fellow for Human Factors, discusses the myths of human limitations and how she got involved in the scientific discipline of human factors.
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Human Factors: Designing Systems with People in Mind - Part 1 of 2
Dr. Cynthia Null, NASA Technical Fellow for Human Factors, discusses how understanding human capabilities and limitations can help engineers reduce risk and design safer, more successful missions from the start.
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Passing Down Knowledge
Heather Koehler, NASA Technical Fellow for Flight Mechanics, explains how knowledge at NASA is passed from person to person, program to program.
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The X-59 Goes Supersonic: What's Next?
NASA’s experimental X-59 airplane went supersonic for the first time on June 5, 2026. What's next for the mission that aims to reopen the skies to quiet commercial supersonic flight?
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Life Support Systems: From Space Station to Orion
Astronauts aboard the International Space Station depend on life support systems that provide clean air, drinkable water, and a safe, livable environment. These systems are what make long-duration spaceflight not only possible, but comfortable. Today, some of these space station technologies have...
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Science Takes a Village (in Alabama)
Ground teams connect with astronauts aboard the International Space Station to help them carry out research and experiments. Kassandra Stephens, payload communications manager at the Payload Operations Integration Center at Marshall Space Flight Center, works with space station crews to get…
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Transformative Aeronautics
A NASA research program collaborates with universities to revolutionize the way we design, build, and operate aircraft. Angela Surgenor, deputy program director of the Transformative Aeronautics Concepts Program, explains.
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Calibrating Satellite Image Data
Before scientists can use those satellite imagery for research, the data must be carefully calibrated to ensure measurements are accurate and consistent over time. Julia Barsi, NASA calibration scientist, explains.
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Space Nuclear Propulsion
Space nuclear power and propulsion engineering could play a key role in sending robots and humans to deep space, enabling faster and farther journeys.
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Test Like You Fly
The “test like you fly” approach is an engineering philosophy that means testing hardware, software, and flight operations as close to reality as possible. Erika Alvarez, deputy director of NASA's Space Systems Department, explains.
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Soft Skills for Tough Missions
So-called “soft skills” like good teamwork and communication can become just as valuable as technical skills to advance exploration.
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Tracking Launches: Views from a NASA Pilot
NASA pilots play a critical role in launch and recovery operations. Shannon Gregory, chief of flight operations at Kennedy Space Center, shares how his team supports crewed launches from the air, capturing real-time imagery, and staying ready for the unexpected.
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How NASA's Pandora Mission Unboxes Distant Worlds
Studying planets in other solar systems isn’t easy, especially when their host stars keep stealing the spotlight. NASA’s Pandora mission will cut through the noise, revealing what the atmospheres of these distant worlds are really made of.
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Choreographing Astronaut Recovery
For any crew returning to Earth from space, the journey home includes a carefully choreographed recovery effort to bring them safely back on dry land after splashing down in the ocean. Christine St. Germain, NASA recovery director for the Commercial Crew Program, tells us about this critical…
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Dragonfly: Mission to Titan
NASA's Dragonfly spacecraft, a rotorcraft the size of a small car, is set to explore Titan, Saturn's largest moon. Rich in organic compounds, Titan offers a rare window into the kinds of chemical conditions that may have existed on Earth long before life began.
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Designing the Roadmap to Mars
Nujoud Merancy, NASA's deputy associate administrator for the Strategy and Architecture Office, talks about how NASA is developing the roadmap for Artemis missions to the Moon and beyond.
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The Many Hats of NASA Engineer Jennifer Lu
From her experience working with the Commercial Crew Program, which sends astronauts to the International Space Station aboard commercial spacecraft, to the Artemis missions to the Moon, aerospace engineer Jennifer Lu shares how working with a variety of teams — including circus performers before...
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Bringing Back Supersonic Flight
Currently, flying faster than the speed of sound over land is prohibited for commercial flights because it creates disruptive sonic booms. NASA's experimental X-59 plane will research how to turn those booms into "sonic thumps," about as loud as a slamming car door. Lead pilot Nils Larson…
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Sailing the Solar System
A solar sail uses light particles from the Sun to move through space without needing a single drop of fuel. NASA is demonstrating the lightweight technology that could open doors to low-cost missions to deep space.
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Simulating Moon and Mars Dust
Dr. Jennifer Edmunson explains what it takes to simulate Moon and Mars dust on Earth, and lessons learned from preparing to build habitats on other worlds.
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NASA's Centennial Challenges Prize Program
There’s a program at NASA that taps into the power of the public to solve some of the toughest problems in space exploration. It’s called Centennial Challenges, a prize competition that has awarded more than $24 million to hundreds of people ranging from academics, startup founders, small…
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6,000 Exoplanets and Counting
On September 17, 2025, NASA announced that the number of exoplanets, planets outside our solar system, tracked by NASA has reached 6,000. In the three decades since the groundbreaking detection of exoplanet 51 Pegasi b, the first confirmed planet orbiting a Sun-like star, astronomers have…
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NASA's Zero Gravity Research Facility
A steel vacuum chamber 50 stories deep at NASA’s Glenn Research Center lets researchers simulate near-weightlessness by letting test hardware freefall for 5.18 seconds.
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Turning Space Data Into Sound
From black holes to star clusters, scientists are turning space data into sound with a process called sonification. Dr. Kimberly Arcand, visual scientist with the Harvard-Smithsonian Center for Astrophysics, joins us to explore how data sonification lets more people experience the cosmos and give...
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StarBurst: Gamma-ray Hunter
StarBurst, a satellite the size of a washing machine, aims to detect the initial blast of gamma-rays, the most powerful bursts of energy in the universe. These huge explosions can occur when dense neutron stars collide, forging metals like gold and platinum. These metals are some of the building...
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Hubble: An Engineering Marvel
The Hubble Space Telescope has changed humanity’s understanding of the universe. Now in orbit for 35 years, it remains a remarkable feat of engineering.
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Fighting Wildland Fires with Drones
Fighting wildland fires by air at night is especially hazardous. NASA’s ACERO Project aims to make firefighting safer, day or night, with drones and smarter airspace management.
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A New Era of X-ray Astronomy with IXPE
IXPE, or the Infrared X-ray Polarimetry Explorer, is NASA’s first space telescope dedicated to studying X-ray polarization from extreme objects like black holes and quasars.
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Risk Management at NASA
Big or small, we all take risks nearly every day. But how does NASA manage it? Dr. Mary Skow, NASA’s first agency risk management officer, explains.
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NASA's Air Traffic Management-eXploration Project
NASA’s Air Traffic Management-eXploration Project aims to accommodate the growing demand of traditional and emerging aircraft that share the friendly skies.
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The Universe in Living Color with SPHEREx
NASA's SPHEREx mission will map 450 million galaxies like we’ve never seen before.
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Episode 152: EZIE Does It
What can the auroras tell us about our planet’s relationship with the Sun? NASA’s EZIE mission looks into it.
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Episode 151: Designing Missions
NASA’s design labs are where engineers develop concepts for missions and scientific instruments.
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Episode 150: Urban Air Taxis
Flying taxis? NASA is working on it.
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Episode 149: Spacecraft Thermal Blankets
Originally a fashion designer, Paula Cain is a NASA thermal blanket technician, working to protect spacecraft from the extremes of space.
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Episode 148: Celebrating NASA's Engineers
NASA engineers turn dreams into reality, solving complex challenges to push exploration forward. From landing rovers on Mars to advancing deep space missions, their ingenuity makes it all possible. This episode with Chief Engineer Joe Pellicciotti and Deputy Chief Engineer Katherine Van Hooser...
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Episode 147: NASA Photography - Visual Storytelling
Ever wondered what it takes to capture NASA’s most breathtaking moments? From rocket launches to behind-the-scenes astronaut training, Bill Ingalls, senior contract photographer for NASA Headquarters has spent decades framing history through his lens. In this episode, we dive into his journey…
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Episode 146: Space Medicine: Body and Mind
What if we could get rid of lengthy waitlists for organ transplants? Well, imagine 3-D printing a kidney from your own stem cells. That would reduce the chances your body rejects it. That’s the sort of groundbreaking medical research astronauts are conducting aboard the International Space…
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Small Steps, Giant Leaps - Pam Melroy: Behind the Strategy
We’re kicking off 2025 with NASA’s deputy administrator Pam Melroy, who wraps up her tenure at NASA this month. As a former astronaut with three space shuttle flights under her belt – including one flight as commander – Pam has made lasting contributions to human spaceflight. She’s also a veteran...
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Small Steps, Giant Leaps: Episode 144: Mining the Moon with NASA’s IPEx Robot
What does it take to mine the Moon? Engineers behind NASA's ISRU Pilot Excavator, or IPEx are digging into the answers. The robotic excavator is designed to unearth lunar regolith and extract oxygen for fuel. In this episode, Jason Schuler, IPEx principal investigator, and Drew Smith, IPEx lead...
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Small Steps, Giant Leaps: Episode 143: NASA Training Simulators
Before leaving the ground, astronauts prepare for spaceflight by immersing themselves in life-like training simulators. This is done with the help of NASA’s Simulation and Graphics Branch. Branch Chief Michael McFarlane leads a team of experts who use cutting edge technology to create digital...
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Small Steps, Giant Leaps: Episode 142: Europa Clipper: Voyage to a Water World
Europa Clipper is NASA’s first mission dedicated to studying an icy ocean world. Launched aboard a SpaceX Falcon Heavy rocket on October 14, 2024, from Kennedy Space Center, the spacecraft is set to arrive at Jupiter in April of 2030 to conduct sweeping flybys of Europa. Europa is one of…
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Small Steps, Giant Leaps: Episode 141: Planetary Defense at NASA
Ever wondered how NASA monitors asteroids? In our latest episode, we go behind the scenes with Dr. Kelly Fast, NASA’s acting planetary defense officer, to discuss efforts to detect, track, and mitigate threats from near-Earth objects, or NEOs. From asteroid early warning systems to a new…
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Small Steps, Giant Leaps: Episode 140: Artificial Intelligence at NASA
NASA has a long history with AI, using it in various applications like autonomous Mars rover navigation and detecting planets in other solar systems. Today, NASA is embracing AI for more members of the workforce, enabling innovation.
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Small Steps, Giant Leaps: Episode 139: NASA's Cosmic Origins Program
NASA’s Cosmic Origins Program seeks to understand the origins of the universe, including the formation and evolution of galaxies, stars, and planets. In this episode, Dr. Swara Ravindranath, deputy chief scientist, and Dr. Ron Gamble, a theoretical astrophysicist, discuss their research and the...
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Small Steps, Giant Leaps: Episode 138: The Sun, Star of Our Cosmic Show
The Sun is the ultimate source of life in our solar system, a radiant powerhouse that bathes Earth in the energy necessary for everything from photosynthesis to weather patterns. Its warmth and light sustain us. However, the Sun’s influence isn't always benign. Its solar wind—a stream of charged...
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Small Steps, Giant Leaps: Episode 137: The Roman Space Telescope - Uncovering the Dark Universe
We don’t yet know what dark matter is, yet it makes up 85% of all the matter in the universe. The Roman Space Telescope will aim to unravel the mystery. With a field of view 100 times wider than the Hubble Space Telescope’s, Roman will study in near-infrared light the atmospheres of planets...
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Small Steps, Giant Leaps: Episode 136: Soft Robotics
Robots inspired by nature? A novel realm of engineering called soft robotics is being studied at NASA’s Langley Research Center. Engineers are working to understand how soft robotics could one day support space exploration, including missions to the Moon’s surface.
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Small Steps, Giant Leaps: Episode 135: Biofilm - Dealing with the Scum off the Earth
Cleaning scum from bathtubs and pipes can be a costly chore. It’s even more challenging aboard spacecraft. NASA researchers are looking at ways to keep astronauts from having to deal with fungal or bacterial buildup, known as biofilm.
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ABOUT THIS SHOW
NASA’s technical workforce put boots on the Moon, tire tracks on Mars, and the first reusable spacecraft in orbit around the Earth. Learn what’s next as they build missions that redefine the future with amazing discoveries and remarkable innovations.
HOSTED BY
National Aeronautics and Space Administration (NASA)
CATEGORIES
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Frequently Asked Questions
How many episodes does Small Steps, Giant Leaps have?
Small Steps, Giant Leaps currently has 181 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is Small Steps, Giant Leaps about?
NASA’s technical workforce put boots on the Moon, tire tracks on Mars, and the first reusable spacecraft in orbit around the Earth. Learn what’s next as they build missions that redefine the future with amazing discoveries and remarkable innovations.
How often does Small Steps, Giant Leaps release new episodes?
Small Steps, Giant Leaps publishes regularly with 181 episodes available. Check the episode list for the typical release schedule.
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You can listen to Small Steps, Giant Leaps on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts Small Steps, Giant Leaps?
Small Steps, Giant Leaps is created and hosted by National Aeronautics and Space Administration (NASA).
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