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Big Picture Science

Off to the Traces

Big Picture Science

Big Picture Science

Science, Technology

4.51K Ratings

🗓️ 25 October 2010

⏱️ 51 minutes

🧾️ Download transcript

Summary

If a tree fell on another planet, would we be able to detect it? Not quite yet – but we might be able to tell if the planet was habitable. A living-planet is the promise of newly-discovered Gliese 581g. But does the planet exist at all? Discover how we learn a planet’s geology and chemistry from afar. Also, what we learn about a civilization from what it discards, beginning with our own sloppy habits. Plus, the hunt for derelict alien spaceships… and a man who sketches alien creatures for a living - based on real science. Guests: Lisa Kaltenegger - Astronomer, Harvard-Smithsonian Center for Astrophysics Brad Bebout - Biologist, NASA Ames Research Center Robin Nagle - Anthropologist, New York University Robin Hanson - Economist, George Mason University Joel Hagen - Computer graphics instructor, Modesto Junior College Descripción en español Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

You're listening to an airwave media podcast.

0:05.0

Get ready to geek out.

0:07.0

The Wired Science Podcast explores all the latest and greatest in science,

0:12.0

everything from strange diseases and biological breakthroughs

0:15.6

to interesting tech and mysteries in outer space.

0:18.7

Listen to Wired Science today

0:20.5

wherever you get your podcasts.

0:22.2

That's Wired Science, wherever you get your podcasts. That's Wired Science wherever you get your

0:24.5

podcasts. The world is filled with many questions such as did giants exist?

0:29.7

What is junk DNA? Does it mean that you're trash?

0:33.0

Do you ever wonder if aliens have underwater bases in our oceans and that's why there are so many

0:38.3

UFO sightings off the coast of islands all over the world? How serious even is climate change and when should we start building our rafts?

0:47.0

Hello everyone, you may recognize me as Gabby from the History of Everything podcast.

0:51.0

And my name is Brenna, and you don't recognize me from anything yet.

0:55.0

Together we're two scientists who explore the answers to these questions and many

0:59.0

many more in our new podcast Mystery of Everything available everywhere you get your podcasts.

1:04.0

As I sit in this studio, I can tell that someone has been in here eating,

1:10.0

maybe a peanut butter

1:14.5

cup or something. You can smell that? Yeah I can, peanut. Okay well it wasn't me but

1:19.6

without seeing any crumbs or telltale signs that someone's been eating in here you Seth

1:24.4

can deduce that someone was. That's called indirect observation and we do this

1:28.8

with planets Molly there's a lot of interest in detecting

...

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