Hello, hello, welcome back to Curiosity Weekly from Discovery. My name is Dr. Samantha Amin,

and we've got a fantastic show for you today. We're going to dive into some of the latest and

greatest in recent scientific research, so whether you're a science fanatic like me, or you just want to

have some interesting info to share at dinner parties, we've got you covered.

Let's get into it. You probably know that Valentine's Day is this Friday, so obviously we've got

to talk about it. We'll dig into the science behind what exactly causes us to feel those butterflies

when you're first attracted to someone, as well as the recent FDA ban on red dye 3,

a food dye that's pretty popular among some Valentine's Day candies.

Personally, the candy is my favorite part of the holiday, so I'm really glad we get to talk about this one.

But Valentine's Day isn't the only thing we're celebrating this week,

because yesterday was the International Day of

Women and Girls in Science. I'm very passionate about opening doors for people of all

genders to research and science. I want to see a place where everyone can thrive in exploring

the world and space around us. And that's exactly what our guest today has done.

You're looking into a world that is absolutely real, but in some ways it feels imaginary, and you certainly feel privileged to be part of this world. It's incredible. I don't know how else to describe it.

That's Dr. Lynn Rothschild. She's an astrobiologist who specializes in extremophiles and what that means

for our search for extraterrestrial life here on Earth. Her research looks into some of the most

severe environments on the planet and the organisms that can live in them. Love is in the air,

and so are those iconic candy hearts with sweet little messages.

So we got to talk about one of their ingredients that was recently banned by the U.S. FDA,

it's Red Die 3.

One month ago, the FDA announced it was rescinding its authorization of the Red Die 3,

...