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.

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This is Scientific Americans' 60 Second Science.

I'm Clara Moskowitz. Got a minute?

The news last month that gravitational waves had been discovered made waves throughout the world of science.

The finding from the laser interferometer gravitational wave observatory, or LIGO,

showed that extreme gravity can cause ripples in space time. In the case studied, the extreme gravity came from two colliding black holes. Now one scientist is suggesting

an added wrinkle that those two black holes might have originated in a single star.

The situation is similar to a pregnant woman that has twin babies in her belly.

Avi Loeb of the Harvard-Smithsonian Center for Astrophysics.

He's proposing the idea in a paper that's been accepted for publication in the astrophysical journal letters.

Loeb became suspicious because just 0.4 seconds after Lago spotted the gravitational waves, a space

telescope called Fermi glimpsed a bright flash of gamma ray light in the same area of the

sky.

Detecting such a signal is quite surprising from a collision of two black holes.

What could be the source of a flash of light following a black hole merger?

Colliding black holes should not produce such light, but the death of a very massive star could.

My idea was that if the star is spinning very rapidly to start with, then as its core collapses,

it produces a bar that breaks into two clumps of matter,

...