Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years. Yacold also

partners with nature portfolio to advance gut microbiome science through the global grants for

gut health, an investigator-led research program. To learn more about Yachtold, visit yawcult.co.

com.j, that's Y-A-K-U-L-T-C-O-J-P. When it comes to a guide for your gut, count on Yacolt.

Happy Monday listeners, For Scientific American Science quickly, I'm Rachel Feldman. Let's get the week off to a great start by catching up on the latest science news.

We'll start about three billion years ago when scientists say a giant space rock may have helped

jumpstart life as we know it. In a study published last Monday in the proceedings of the National

Academy of Sciences, researchers describe a meteorite called S2 as being four times the size of Mount

Everest. That makes it as much as 200 times more massive

than the rock we associate with the death of the dinosaurs. When S2 crashed into our planet about

3.26 billion years ago, the study authors say, life was just getting started. So only single-celled

organisms were around to experience the chaos

wrought by the 36-mile-wide meteorite. The researchers say that that likely included a tsunami,

some boiling oceans, and skies darkened with thick dust across the globe. So yeah, pretty spooky

stuff. But in studying tiny particles

called spherals, which are glassy or crystalline beads left behind in sedimentary rock layers

after major meteorite impacts, the researchers found evidence that this apocalyptic collision

paid off in the long run. They see signs that the big crash stirred up elements such as

iron and phosphorus that made the planet more hospitable to life. The study authors say it probably

wasn't an awesome day to be a bacterium living on Earth, but those organisms bounced back

pretty quickly and they actually thrived in the aftermath.

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