This is an I-Hart podcast.

Guaranteed Human.

A puzzling relativity experiment posed by the thought, two spaceships accelerate.

Does a string between them break or not? Parasitoid wasps use a virus to help manipulate.

A collaboration which seals the caterpillar's fate.

When the LHC smashes protons that have a huge energy boost,

what kind of camera lets us trace the particles that are produced?

Whatever questions are keeping you up at night, Daniel and Kelly's answers will make it right.

Welcome to Daniel and Kelly's Extraordinary Universe listener questions number 40. We're turning 40. It's a milestone.

Yay! And you're going to round that up to 100, aren't you?

Welcome. A milestone. Yay! And you're going to round that up to 100, aren't you? Welcome to listener questions episode number 100.

Congratulations to us.

Congratulations. Hello, I'm Kelly Weider-Smith.

I study parasites and space.

And today I get to talk about parasitoids and viruses, so I am very, very excited.

Hi, I'm Daniel.

I'm a particle physicist who likes to think about aliens, and I don't like to think about crazy viruses or wasps.

Then you picked the wrong co-host. Sorry, Daniel.

I kind of do because it's fascinating and the science is amazing and they're always incredible mysteries, but I often leave them wondering, am I having a nightmare about this tonight?

But do you?

No, I have nightmares about like turning into a pizza and being eaten or something like that.

So they're much more nonsensical.

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