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.

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This is Scientific Americans' 60-second science. I'm Steve Merski. How many moons does Jupiter have?

If you said four, you might be Galileo. If you said 69, you were right. Until the announcement this

morning by the International Astronomical Union of the discovery of an additional 10 moons about the

gas giant planet, bringing the currently known total to 79.

That's a lot of moons.

A research team from the Carnegie Institute for Science, the University of Hawaii, and

Northern Arizona University, was looking in 2017 for very distant objects in our solar system,

well beyond Pluto. Jupiter happened to be in the same field of view, so they also looked for any

as-yet-unknown moons. They found 12, two of which were announced last year. Confirmation of the

moons required multiple observations, and those data

enabled a calculation of the moon's orbits. Nine of the dozen moons are well away from Jupiter

and have retrograde orbits, meaning they go around the planet in what we'd think of as the wrong

direction. They take about two earth years to complete their circuits.

Two new moons are closer in, go the right way, and take about an earth year for one orbit.

Those 11 moons are probably remnants of larger bodies that got broken up in collisions.

The remaining moon is less than a kilometer across, further out than the two conventional moons,

and has a 1.5-year orbit, and the orbit is inclined. That tilt has the weird little moon

...