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Short Wave

Meet The Third Ever (!!) Interstellar Comet

Short Wave

NPR

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

4.76K Ratings

🗓️ 11 July 2025

⏱️ 11 minutes

🧾️ Download transcript

Summary

A rare visitor from another star system has been spotted: the interstellar comet 3I/ATLAS! It was detected July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System, or ATLAS. Most known comets orbit the Sun and are bound by the gravity of the solar system ... but this object came from far beyond the pull of our Sun, traveling 137,000 miles per hour from another star. Now, scientists are racing to get a good image of it, in the hopes it can answer big questions like: What is the universe like where this comet is from? Is the solar system we live in unique?

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Transcript

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0:00.0

grab a snack, make the bed, check your mail, or catch up on the latest news with the NPR News Now podcast. Listen in the time it takes you to do any of those other activities or while doing them. We bring you the stories you need to know in just five minutes, every hour of every day. Listen now to the NPR News Now podcast. You're listening to Shortwave from NPR.

0:29.7

Hey, shortwaver is Regina Barbara here and Emily Kwong with our biweekly Science News Roundup featuring the hosts of all things considered.

0:37.1

And today, one of our favorites, Ari Shapiro.

0:40.1

One of your four favorites.

0:41.4

One of our four hosts.

0:42.8

I'm excited to hear about our new interstellar visitor.

0:46.8

I've been dreaming up names for him or her or them.

0:49.1

We also got news about a plastic eating worm that could revolutionize recycling.

0:53.7

And new research on how some animal's sense of smell varies by altitude.

0:58.3

Nothing to sniff at.

0:59.7

All that on this episode of Shortwave, the science podcast from NPR.

1:07.2

As AI permeates every aspect of our lives, who are the people behind this huge inflection point?

1:13.3

What keeps them up at night?

1:14.8

I fear that what it means to be human may suddenly not be our own.

1:18.9

We've got a special series from NPR's TED Radio Hour.

1:21.9

It's called The Profits of Technology.

1:24.4

What they got right, wrong, and where these pioneers think we're headed next.

1:28.7

Listen to the TED Radio Hour, wherever you get your podcasts.

1:31.7

At Planet Money, we know that economic jargon can sometimes feel like speaking another language.

1:36.9

Yeah, like arbitrage, alpha, autarchy.

1:40.9

That's just what's in the news these days.

1:42.2

There's also absolute advantage, aggregate demand. Agg supply. And this is just the A's.

...

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