This episode is presented by eBay.

Rob, everyone loves a deal and a bargain from time to time, don't they? Absolutely, mate. And you know where you can grab a great deal? Talk to me. Where? The eBay app. Yes, you are correct. You didn't need to talk to me. I already knew it. I love eBay. When you're buying, you can discover loads of hidden gems. there's so many items where you think I would have never found that anywhere else.

Then when you're buying, you can discover loads of hidden gems. There's so many items where you think I would have never found that anywhere else. Then when you're selling, it's so simple and most

importantly, free. It's free, Rob. When it's this easy to sell for free and there's great deals

on things you love. You can't help but say when it's eBay. It excludes vehicles and business

sellers. Welcome to Science Talk, the podcast of

Scientific American for the seven days starting June 28th. I'm Steve Murski. This week on the podcast,

we span the globe from A2A, Alaska to Australia. Science writer Karen DeSiv talks about her trip to the Bering Sea to observe research there.

Journalist John Miller discusses a recent conference on the health effects of radiation, and we'll hear from Chalonian expert Scott Thompson in Canberra, Australia.

If you don't know what a Chalonian is, good, stick around. First up, Karen DeSiv. She's a science writer at the Liberty Science Center, located right behind the Statue of Liberty. She had just gotten back from the Bering Sea when we spoke at the offices of Scientific American. Hey, Karen. Thanks for joining us. Thanks, Steve. Glad to be here. What were you doing in the Bering Sea? Well, I got a chance to go be on a U.S. Coast Guard icebreaker called the Healy, which is the largest scientific ship in the fleet.

And there's a series of research projects going on there that I was reporting on and filming for an exhibition that's coming up at Liberty Science Center in Jersey City, New Jersey.

Was it cold for one thing? It was pretty cold. They're right in the middle of their, what they call

the springtime bloom. So this is normally the time that the ice would start melting up there.

They had a pretty good ice year. And what they have found is in the past few years,

the ice hasn't been quite as good. So this year was a little bit colder. And yeah,

we found ourselves wrapped up in hats and scarves and things out on deck while a lot of science

was going on.

What were the, what dates were you actually out there?

I left on May 23rd.

I got on the boat.

They helicoptered me from Nome, Alaska, to the Healy on May 24th.

And then I got back in the helicopter and left the ship and went to gamble on St. Lawrence Island to the tiny island, 35 miles from Russia,

...