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You're listening to TED Talks Daily where we bring you new ideas and conversations to spark your curiosity every day.
I'm your host, Elise Hu.
So at the TED Conference in Vancouver this past April, there was a huge geometric dome right outside of the main theater.
Inside were cushions, plants on the walls.
Even a microscope. It was very cool.
This was a large mock -up of a space home.
Yep, you heard that right.
It was designed by space architect Ariel Ekbla and her team.
I don't want to give too much else away, so I'll just say this.
In her talk, she shares why space is not just a frontier for exploration, but also a platform for solving humanity's biggest challenges.
Ariel says we must rethink how we live on Earth and beyond for the betterment of human community and survival.
And make sure to come back to this feed later this afternoon.
Ariel and I actually got to sit down after her talk to hear more about the work and ideas she shared onstage.
I once had a professor ask me, Why, in the world, do we spend so much money on space exploration in the face of so many pressing challenges here on Earth?
It's a good question, and a tough one for me.
Should we be building a future life in space?
I want to argue yes and tell you how.
I do believe in the beauty of space exploration for the sake of new knowledge, because the little that we do know about our universe pales in comparison to what we do not yet know.
And in some ways, it's in my blood.
My parents were both pilots, my dad was an ATEM fighter pilot, and my mom was one of the first women to ever fly for the United States Air Force.
And 14 years ago, I floated in microgravity, like an astronaut, for the first time.
This inspired me to work in aerospace for the rest of my life.
But space exploration does so much more than just inspire.
Our space programme has routinely delivered breakthrough innovations.
The Apollo programme gave us the foundation of modern computing.
The International Space Station gave us Lasik eye surgery, contributed to that amazing technology.
and now new technologies are coming online to enable life -saving biotech in orbit and even deliver energy from space.
What makes all of this possible?
In the last 15 years, the cost to get to space has dropped dramatically from over $50 ,000 a kilogram in the NASA shuttle era to now under $200 a kilogram with SpaceX's Starship coming online.
This is remarkable.
This is like FedEx. If you can ship something around the world, you can ship it to space.
But the precursor space station, where so much of this amazing work has been taking place, the International Space Station, it's getting old, it's very cramped, and worse, it's about to be shut down.
It's going to be decommissioned in 2030, 2031.
We need new infrastructure and we need it fast. Unfortunately, current in -space construction is quite slow.
difficult and dangerous.
All of the pieces of the International Space Station were assembled over 15 years by astronauts doing incredibly courageous and risky maneuvers in bulky space suits, basically building some of the most advanced technology known to human kind by hand.
This hand -built method doesn't scale.
Even if the cost to go to space dropped even more dramatically tomorrow, we only have room for about fourteen humans in orbit, period.
The bottleneck isn't rockets anymore, it's real estate, and we need a new solution for how to build in orbit and scale up space infrastructure for the public good.
Nine years ago, I started working on this problem.
Could we learn from nature, from plants and proteins that self -assemble at a small scale, and adapt us to the grandest scales in space.
We know that when you're in free fall around a planet, you have the sensation of zero gravity.
In that environment, forces like magnetism can bring together vast objects with ease.
So first, at MIT and now at Aurelia Institute, my team and I have invented a system to do just this, to grow space structures in orbit using autonomous robotic self -assembly.
The idea behind the method is to allow us to build reconfigurable space stations that are bigger than our biggest rockets.
Based on my MIT PhD, we use electropermanent magnets, very special, strong magnets that bring the modular tiles together to dock, to rendezvous.
Essentially, think about space Legos with magnets that click, click, click, click into place.
Tesserae, what we call this space habitat, is a self -assembling structure.
So we ship the modular parts to their destination, wherever they're meant to be, and once the tiles or the modules arrive, they build themselves.
So we don't require astronauts or even robotic arms to go out and do slow or risky spacewalks and space maneuvers.
And from there, after the tiles have come together to form one buckyball, multiple Buckyballs can dock to form a larger space station.
And the best part is that we have tested this in space twice.
Michael López Alegria, on orbit, inside the International Space Station, helping us test the code and the timing and the pacing for dynamic robotic self -assembly in orbit.
From here we build and fly, and test, we iteratively prototype, We simulate the physics to be able to fine -tune the construction method.
And last year, we built a human -scale mock -up of our space habitat and we brought it on a road show across the country.
What we hope to communicate to the public with these interiors is a life worth living in space or at least worth commuting to.
Once we're in space, we can use the really unique environment of the vacuum, of microgravity, to manufacture things that can't be made on Earth.
In low -Earth orbit, we're working with partners to use the tesserae construction technology to assemble large -volume, high -throughput biotech factories.
It turns out that in microgravity, protein crystals grow differently, certain types of tissues grow faster or mature better, and we can even do novel drug discovery in a way that we can't do under the conditions of Earth gravity.
We know that certain key biological samples behave differently in space, particularly when they're floating.
So whether it's exceptional quality organoids for testing Alzheimer's drugs or cancer drugs, or artificial retinas that would cure macular degeneration, these therapies would be made in space, stabilized, and brought back down to Earth.
A little bit further out, between Earth and the sun, we're working to see if we can help start up energy companies self -assemble thousands of solar panels in orbit, above the atmosphere.
What this would allow us to do is capture raw, unfiltered sunlight and beam it anywhere on Earth, even at night.
This is like a flashlight from space, and it would fundamentally solve the storage problem for solar power, allowing us to deliver abundant green energy to the surface of the earth.
Thank you. Thank you.
Thank you. These are some of the most responsible ways that we could use space technology in service of Earth.
My team and I had been working on an idea passionately known for decades in science fiction as off -worlding, not off -worlding the humans, but off -worlding the heavy industry.
We could let Earth recover as a garden planet for generations to come and use space infrastructure to do that off -roading.
And this future is a lot closer than you may think.
While space travel definitely feels rarefied, and in many ways it certainly still is, I bring dozens of people with me every year into microgravity on parabolic flights.
This is how NASA trains astronauts, affectionately known as the Vomit Comet.
It's more fun than it sounds.
And this is how we are training the new space generation.
We are building architecture to welcome more people to orbit, whether it's for a long weekend to see the planet from space for the first time, or maybe for a career scientist to commute for a decade to work on a major breakthrough.
Rockets like Starship enable us to dream really big, to be able to get enough mass of tesserae tiles and enough people into orbit to be able to fundamentally scale up space infrastructure for the public good.
We know that the business case for space is here.
Governments are investing in space -based solar power, companies are investing in zero -G biotech, and in the next ten years we believe that we will be able to deploy our first modularly self -assembling space habitat, and contribute to a trillion -dollar space economy.
And one of the best things we could do with this infrastructure is harness it for the profound benefit of life on Earth, because, fundamentally, space exploration isn't about escaping Earth.
In 1968, Bill Anders took this iconic photograph, now lovingly referred to as Earthrise, and famously remarked, we came all this way to explore the moon, and the most important thing is we discovered the Earth.
Bill's comment reminds us that space exploration is about building an aspirational future for humanity wherever we are.
On Earth, in orbit around Earth, or beyond.
Access to space is cheap enough now and available enough we need to update our conception of the possible.
If we invest now in space infrastructure, if we invest now in space architecture, new paradigms for how we can build infrastructure in space, we can profoundly expand humanity's horizons while still protecting the heritage of our priceless planet.
We don't have to pick one or the other.
Someday, we will live on Mars.
someday we will travel outside the confines of our solar system.
But until then, let's put space to work for Earth.
Thank you. That was Ariel Ekblah speaking at TED 2025.
If you're curious about TED's curation, find out more at TED .com slash Curation Guidelines.
And that's it for today's show.
Ted Talks Daily is part of the TED audio collective.
This episode was produced and edited by our team, Martha Estefanos, Oliver Freedman, Brian Green, Lucy Little, Alejandra Salazar and Tansika Sarmarnivon.
It was mixed by Christopher Faizi Bogan, additional support from Emma Todner and Daniella Balarrazzo.
I'm Elise Hu. I'll be back tomorrow with a fresh idea for your feed.
Thanks for listening.
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