In the badlands of North Dakota, a family made the discovery of a lifetime with a little help from a paleontologist.

You know, and I brush a little bit more and then we see three teeth staring back

at us and we both exclaim, you know, we found a T-Rex. It's Friday, June 14th, Happy Science Friday. I'm Cyfry producer Rasha Arredi. The fossil

found by this family belonged to a teenage T-Rex, teen-Rex, if you will. They are incredibly rare and scientists hope that this young

specimen could help them piece together what T-Rex looked like and how it behaved growing up.

But before we get into this

Dino discovery, let's round up this week's science news. Here's guest host

Annie Minoff. This is Science Friday. I'm Annie Minoff, a senior producer on the Journal Podcast and former co-host of Science

Friday's Podcast Undiscovered, and I will be filling in for Ira Plato this week. A new study out this week suggests that around 2 to 3 million years ago,

our solar system collided with a gigantic interstellar cloud, and it could have changed the

trajectory of life here on Earth.

Here to fill us in on that and other science stories of the week is Tim Rebel, executive

editor for New Scientist.

Welcome back Tim. Hi, thanks for having me. So explain what was going on with this giant

interstellar cloud.

Yeah, so the first thing you need to know about this is that the sun has a sort of protective bubble around it called

the heliosphere and that's formed by solar winds pushing outwards and this

protective bubble it extends to the edges of the solar system and so it helps protect the planets within it from radiation

But researchers have now worked out that about two to three million years ago

the Sun passed through this dense cloud of helium called the Local Ribbon of

Cold Clouds.

I love that it has a name, just to pause on that, the Local Ribbon of Cold Clouds,

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