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 Yachtolt, visit yawcult.co.j.p.

That's y-A-K-U-L-T dot-C-O-J-P.

When it comes to a guide for your gut, count on Yacult.

This is Scientific Americans' 60-second science.

I'm Steve Merski. Got a minute?

All those people who are mad that Pluto is no longer planet can be thrilled to know that there's a real planet out there still to be found.

Caltech planetary astronomer Mike Brown.

He knows about those mad people.

He's the guy most responsible for demoting Pluto and messing up

everyone's mnemonic devices to remember the names of the planets. My very educated mother just

served us nine. It used to be pickles, but without Pluto, we don't know. But now Brown, who

wrote the book How I Killed Pluto and Why It Had It Coming, and whose

Twitter handle is at Pluto Killer, wants to return the solar system to being nine planets

strong, because he and his colleague Constantine Batigen think they have evidence that an object

that will surely qualify as being a full-fledged planet lies way out at what's usually considered the edge of the solar system.

When we looked at the outer solar system, we realized that while most of the very distant objects, these objects beyond Neptune, beyond Pluto, most these objects, they all go around the sun and they're all sort of pointing off in all different directions. But the most distant objects all swing out in one direction

in a very strange way that shouldn't happen. And we realize that the only way we could get them

to all swing in one direction is if there is a massive planet also very distant in the solar

system, keeping them in place while they all go around the sun.

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