NASA astronaut Donald Thomas inspires next generation at Space Adventure in Brazil

The greatest gift of space exploration is showing young people that big dreams are not fantasies.
Thomas reflects on why museums and direct encounters with astronauts matter for inspiring the next generation of scientists and explorers.

In the coastal city of Balneário Camboriú, a man who has orbited Earth more than a thousand hours knelt to the eye level of children and offered them something no curriculum can fully provide: the living proof that the impossible is negotiable. Donald A. Thomas, a four-mission NASA veteran, walked the galleries of Space Adventure — home to the largest collection of American space artifacts outside the United States — not to display his past, but to illuminate someone else's future. His visit was a quiet argument, made in person, that the deepest purpose of space exploration is not the distance traveled but the curiosity it ignites in those who have not yet left the ground.

  • A generation of Brazilian children came face to face with a man who has actually floated weightless above the Earth, collapsing the distance between dream and biography.
  • The encounter unfolded inside a museum holding over 300 original NASA artifacts — real hardware, real history — creating a tension between the enormity of space and the smallness of a child's outstretched hand.
  • Thomas, who once served as the voice of Houston speaking to astronauts in orbit, now redirected that same authority toward the young, insisting that Mars and beyond belong to whoever refuses to accept limits.
  • The visit crystallized a broader urgency: with space exploration accelerating globally, the race to inspire the next generation of scientists and engineers is as consequential as any rocket launch.
  • The trajectory is hopeful — seeds planted in a museum in southern Brazil, watered by the testimony of someone who has looked back at Earth from the other side of the atmosphere.

On a Monday afternoon in Balneário Camboriú, children exploring the galleries of Space Adventure found themselves in conversation with Donald A. Thomas — a NASA astronaut who has logged more than a thousand hours in orbit across four missions dedicated to physics, medicine, and materials science. Thomas also served as CAPCOM on three additional missions, the human voice connecting Houston to astronauts in space. He is not someone who encountered space exploration from a distance.

What moved him most during the visit was what he saw in the children's faces: the precise moment when possibility becomes personal. Space Adventure, he noted, is uniquely equipped to produce that moment. Its more than 300 original NASA artifacts — the largest collection of American space hardware outside the United States — place children in front of objects that have actually traveled beyond Earth. Simulators, a planetarium, and virtual reality stations surround them. Standing before a real spacecraft component, the line between dream and achievable goal begins to dissolve.

Thomas spoke to the families gathered around him with the particular authority of someone who has lived the argument he was making. Every mission, he reflected, is the product of thousands of people solving problems that once seemed unsolvable — proof that collaboration and persistence can move the boundary of the possible. The rockets and the data matter, but the deeper legacy of space exploration is what it demonstrates to a young person still deciding what to believe about their own potential. That message, delivered by someone who has actually looked back at Earth from beyond the atmosphere, carries a weight no textbook can replicate.

On a Monday afternoon in Balneário Camboriú, children moving through the interactive galleries of Space Adventure encountered Donald A. Thomas, a NASA astronaut who has logged more than a thousand hours orbiting Earth across four separate missions. Thomas was in Brazil as part of a broader schedule, and he spent time walking the museum's exhibits, examining hardware that had actually flown, and talking with families about what it means to reach for the stars.

Thomas carries the weight of real spaceflight experience. He flew on missions designated STS-65, STS-70, STS-83, and STS-94—each one focused on research that mattered: physics, medicine, biotechnology, how materials behave when gravity disappears. Beyond his own flights, he served as CAPCOM on three other missions, the voice in Houston speaking directly to astronauts in orbit. This is not someone who read about space exploration in a textbook.

What struck him most during his visit was the clarity of purpose he saw in the children's faces. He spoke about the moment when a young person's eyes light up at the possibility of becoming an engineer, a scientist, maybe even the first human to walk on Mars. Space Adventure, he noted, has the power to plant that seed. The museum holds over three hundred original NASA artifacts—the largest collection of American space hardware anywhere outside the United States. Simulators, a planetarium, virtual reality stations, and pieces of actual history fill the space. For a child standing in front of a real spacecraft component, the boundary between dream and achievable goal can blur.

Thomas reflected on what space exploration actually leaves behind. The rockets, the satellites, the data—these matter. But the deeper legacy, he argued, is something else entirely. Every mission represents years of work by thousands of people, each one solving problems that seemed unsolvable, each one believing that collaboration could overcome obstacles. When you're in space, you understand this viscerally. You understand that the impossible becomes possible through persistence and teamwork.

He spoke directly to the children and families around him: the greatest gift of space exploration is not a new technology or a photograph of a distant planet. It is the capacity to show young people that big dreams are not fantasies. It is the proof that if you work hard enough, learn enough, and refuse to accept limits, you can reach places that once seemed unreachable. That message—delivered by someone who has actually been there, who has actually looked back at Earth from beyond the atmosphere—carries a weight that no textbook can match.

Seeing the brightness in children's eyes reminds me of when I was their age. Places like Space Adventure have the power to inspire future engineers, scientists, and perhaps the first humans on Mars.
— Donald A. Thomas, NASA astronaut
The greatest legacy of space exploration goes beyond technology—it is the ability to inspire the next generation to dream big, seek knowledge, and believe that the impossible can be achieved.
— Donald A. Thomas
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why does it matter that an astronaut shows up at a museum? Couldn't the same message come from a video?

Model

A video is information. A person who has actually been to space is proof. When a child looks at someone who has orbited Earth four times, they're not just hearing a story—they're seeing a possibility made flesh.

Inventor

But Thomas has been retired from active spaceflight for years. Why is his presence still significant?

Model

Because the work he did—the missions, the research, the collaboration with thousands of people—that's still the template for how we explore space. He's not selling a future that doesn't exist yet. He's showing what's already been accomplished and what comes next.

Inventor

The museum has three hundred NASA artifacts. Does the physical object matter more than the story?

Model

Both matter, but differently. The artifact is a touchstone—it says this really happened. The astronaut is the bridge between the object and the child's imagination. He can explain what it felt like, what it meant, why it mattered.

Inventor

He mentions that space exploration's legacy is inspiration, not technology. Isn't that underselling what space exploration actually does?

Model

No. Technology is the tool. But if inspiration is what drives the next generation to become the engineers and scientists who build the tools, then inspiration is the engine. Without it, the technology stops.

Inventor

What does a child actually take away from an encounter like this?

Model

Permission. Permission to dream something that feels too big. Permission to believe that the impossible is just something that hasn't been solved yet.

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