6 space technologies we can use to improve life on Earth | Danielle Wood

133,911 views ・ 2018-02-24

TED


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I was 17 when I chose my career.
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I was standing outside
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on a hot summer night in Florida
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and just a few miles from the ocean.
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I was waiting for a miracle to happen.
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That summer, I was privileged to work as an intern
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at NASA's Kennedy Space Center,
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and the miracle I was waiting for
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was the launch of the Columbia Space Shuttle
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carrying the Chandra X-Ray Observatory,
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a telescope that would allow scientists to peer into the edge of black holes.
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The entire sky filled with light.
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And it was as if it was daytime in the middle of the night.
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Soon, we could feel the rumble of the engines vibrating in our chests.
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And it wasn't a miracle;
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it was the combined effort of a team of thousands of people
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who worked together
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to make was seemed impossible a reality.
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And I wanted to join that team.
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So I decided to apply to a university where I could study aerospace engineering.
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And the following year,
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I started at MIT in my engineering training
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and joined a student project building space robots.
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And everything was going as I planned,
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except I was confused about something important.
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Now, my confusion arose in my summer breaks.
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I traveled to a school in Kenya,
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and there I volunteered with girls ages five to 17,
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giving them lessons in English and math and science.
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And they taught me songs in Swahili.
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And mostly, I just spent time getting to know the girls,
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enjoying their presence.
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And I saw that these girls and the leaders in their community,
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they were overcoming important barriers
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to allow these girls to have the best possible chances in life.
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And I wanted to join that team.
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I wanted to be part of a team that would help break down barriers
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and improve the lives of girls around the world.
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But I was worried that studying aerospace engineering
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wasn't the most useful.
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I was worried this team in Kenya couldn't use the technology
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I was learning about space.
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But thankfully, I still learned that I was wrong.
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I came back and interned at NASA again,
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and this time,
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a mentor taught me
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that countries like Kenya had been using space technology for decades
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to improve the lives in their own countries.
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And then I knew that I could have a career in space
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and in development.
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This idea is not new.
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In fact, in 1967, the nations of the world came together
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to write the Outer Space Treaty.
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This treaty made a bold statement,
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saying, "The exploration and use of outer space
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should be carried on for the benefit of all peoples,
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irrespective of their level of economic or scientific development."
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We have not truly lived up to this ideal,
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although people have worked for decades to make this a reality.
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Forces such as colonialism and racism
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and gender inequality
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have actually excluded many people from the benefits of space
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and caused us to believe that space is for the few
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or the rich or elite.
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But we cannot afford this attitude,
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because the world is engaged in a vital mission
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to improve life for everyone.
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Our road map for this mission comes from the 17 Sustainable Development Goals
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of the United Nations.
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All the member states of the United Nations have agreed
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that these are priorities between now and 2030.
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These goals give us our key moments and opportunities of our time --
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opportunities to end extreme poverty,
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to insure that everyone has access to food and clean water.
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We must pursue these goals as a global community.
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And technology from space supports sustainable development.
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In fact, there are six space services
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that can help us pursue the Sustainable Development Goals.
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Over the next few minutes, let's explore these six services,
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and see examples of just a few of the goals they help support.
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You ready?
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OK.
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Communication satellites provide access to phone and internet service
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to almost any location on Earth.
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This is particularly important during times of disaster recovery.
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When Typhoon Haiyan struck the Philippines,
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the local communication networks needed to be repaired,
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and teams brought in inflatable communication antennas
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that could link to satellites.
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This was useful during the time of repair and recovery.
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Positioning satellites tell us where we are
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by telling us where they are.
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Scientists can use this technology to track endangered wildlife.
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This turtle has been fitted with a system
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that allows it to receive location information from positioning satellites,
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and they send the location information to scientists
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via communication satellites.
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Scientists can use this knowledge to then make better policies
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and help determine how to keep these animals alive.
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Earth observation satellites.
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They tell us what's going on in our environment.
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Right now, there are about 150 satellites
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operated by over 60 government agencies,
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and these are just those observing the Earth.
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And meanwhile, companies are adding to this list.
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Most of the governments provide the data from the satellites for free online.
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Some of these satellites provide images like this,
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that show what you would see from a camera.
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This is an image showing agricultural land in Kansas.
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However, the majority of the Earth observation satellites
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don't take pictures at all.
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They take measurements.
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And they combine these measurements with complex computer models
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and make beautiful, global visualizations such as this one,
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showing the ocean currents
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and the temperature of the ocean, globally.
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Or we can look at the salt and smoke and dust in the atmosphere,
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or the rainfall and snowfall, globally,
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as well as the annual cycle of vegetation on land and in the ocean.
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Now, scientists can take this information about the rainfall and the vegetation
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and use it to understand
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what areas on Earth are in danger of a famine or a drought
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and provide that information to aid organizations
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so they can be prepared with food aid before the hunger becomes severe.
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In space, we have an orbiting laboratory on the International Space Station.
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The vehicle and everything inside are in a form of free fall
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around the Earth,
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and they don't experience the effect of gravity.
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And because of this, we call it "microgravity."
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When astronauts are in the microgravity environment,
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their bodies react as if they're aging rapidly.
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Their bones and muscles weaken,
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and their cardiovascular system and their immune system change.
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As scientists study how to keep astronauts healthy in space,
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we can take the exercises and techniques we use for astronauts
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and transfer them to people on Earth
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to improve our health here.
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Often, as we develop technology for astronauts and exploration
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or for spacecraft,
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we can also transfer those inventions to improve life on Earth.
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Here's one of my favorites.
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It's a water filtration system,
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and a key component of it is based on the technology
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to filter wastewater on the space station.
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It's now being used around the world.
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Space is also an infinite source of inspiration,
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through education,
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through research and astronomy
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and that age-old experience of stargazing.
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Now, countries around the world are engaging in advancing
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their own development
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by increasing their local knowledge of engineering and science and space.
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Let's meet some of the world's newest satellite engineers.
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This is Elyka Abello, from Venezuela.
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Elyka is training as a satellite engineer
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as part of her national satellite program in Venezuela.
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She has designed a software tool
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that allows her team to better design the power systems for engineering.
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This is Adel Castillo-Duran,
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from the Philippines.
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Adel is both a meteorologist and a satellite engineer,
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and she uses data from satellites in her weather forecasting.
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And finally, meet Hala.
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Hala is from the Sudan,
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and as she was studying electrical engineering as an undergraduate
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in Khartoum,
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she and several students decided to build their own satellite.
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And later, Hala earned a scholarship to study satellite engineering
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at the graduate level.
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These stories that I've shared with you
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all illustrate that space truly is useful for sustainable development
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for the benefit of all peoples.
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But we have more work to do,
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because there are still barriers that exclude people from space
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and limit the impact of this technology.
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For many people, Earth observation data is complex.
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And satellite communication services are too expensive.
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And microgravity research just appears to be inaccessible.
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This is what motivates my work as a professor at MIT's Media Lab.
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I've recently founded a new research group called Space Enabled.
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We are working to tear down these barriers that limit the benefits of space.
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And we're also going to develop the future applications
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that will continue to contribute to sustainable development.
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We'll keep on this work
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until we can truly say that space is for the benefit of all peoples,
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and we are all space enabled.
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Thank you.
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(Applause)
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