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Short Wave

Launching Into Space — Sustainably!

Short Wave

NPR

News, Life Sciences, Daily News, Nature, Science, Astronomy

4.76.6K Ratings

🗓️ 10 April 2023

⏱️ 13 minutes

🧾️ Download transcript

Summary

In 1957, the Space Age began with the launch of Sputnik, the first artificial satellite. Since then, the number of objects humans have hurled toward the stars has soared to the thousands. As those objects have collided with one another, they've created more space debris in Earth's orbit. According to some estimates, all of that debris and human-made space trash, the number of objects — from satellites to screws — could be in the millions. In this iteration of our AAAS live show series, Short Wave co-host Aaron Scott talks to Danielle Wood, an assistant professor of aeronautics and astronautics at MIT, about the dangers of accumulating space debris, and how she and others are working to make space more sustainable.

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Transcript

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0:00.0

You're listening to Shortwave from NPR.

0:06.6

On October 4th, 1957, the Space Age began.

0:11.4

The Soviet Union launched the very first artificial satellite into space, an object about the

0:16.9

size of a beach ball named Sputnik.

0:19.7

In the six and a half decades since the number of objects we humans have launched into orbit

0:24.5

has skyrocketed.

0:25.5

It's an important year, 2023, to ask this question of how many objects have humans put

0:31.0

into space.

0:32.0

Daniel Wood is a professor of aeronautics and astronautics at the Massachusetts Institute

0:36.4

of Technology.

0:37.8

We talked with her at our recent live event at the big annual science conference put

0:41.8

on by Triple AS.

0:43.5

And she says we've now put thousands of objects into orbit today.

0:48.0

And this is just the beginning of a major trend.

0:51.0

And we are expecting to see thousands of objects, maybe tens of thousands.

0:54.6

If everyone is planning to do it, does what they say.

0:57.4

And that's only counting objects that are still in operation.

1:00.7

Daniel says if you include the many dead rockets and satellites plus all the debris created

1:05.8

from their collisions down to the screws and tiny paint flecks, basically if you account

1:10.9

for all of the trash that we have dumped into space, that number is much, much higher.

1:17.4

So the number of things that are hard to track but are there and are also not even operating

1:21.5

or sending any radio signal.

...

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