A lot of people think about science as a pursuit of answers, and it is.

But the most fun part is that it always, always leads to more questions.

There's no limit to things to be curious about.

Like, can you believe we're still discovering new organisms?

I can't wait to tell you about the recently discovered fire amoeba,

a remarkable organism that thrives

in some of the most extreme environments on Earth.

And then, to talk about fascinating unknowns, we'll be joined by theoretical astrophysicist Dr. Katie

Mack.

We'll get into dark matter and the universe from beginning to end.

And later, thankfully some helpful answers about the impact of exercise on cancer prevention. Welcome to end. And later, thankfully, some helpful answers about the impact of exercise

on cancer prevention. Welcome to Curiosity Weekly. I'm Dr. Samantha Amin. Meet the fire

amoeba, a newly discovered species that pushes the boundaries of what we thought was possible

for complex life, because it thrives at a shocking

63 degrees Celsius. That's about 145 degrees Fahrenheit. The fancy name for the fire amoeba is

incendiamiaba cascadensis, for the hot, fiery conditions it thrives in, particularly those

associated with geothermal activity, like hot springs.

For a long time, scientists thought complex organisms couldn't survive that kind of heat,

because the high temperatures would damage their DNA and cause proteins to lose their shape.

Picture cooked eggs.

So most of the research around extremophiles, that's life that can survive in extreme conditions like acidity or temperature,

most of this extremophile research is focused on bacteria and archaea. They're simpler in their

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