What’s hot in science? Research news for the day of June 22, 2021

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Nine examples of domesticated Brassica rapa, a species humans have bred into root vegetables.

Tue, 22 Jun 2021
Don’t like eating greens? Blame it on Brassica domestication

New study shows genetic diversity of wild Brassica rapa came from domestication

Delicious to some, but a bitter bane to others’ taste buds, vegetables like broccoli rabe, bok choy and turnips are a dinner staple — and picky eater conflict — around the world.

It all likely started in the mountains near present-day Afghanistan, where humans first

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A cut-away of Earth’s interior shows the solid iron inner core (red) slowly growing.

Tue, 22 Jun 2021
Is Earth’s core lopsided? Strange goings-on in our planet’s interior

Earth’s solid-iron inner core is growing faster on one side than the other

For unknown reasons, Earth’s solid-iron inner core is growing faster on one side than the other. It’s been doing so since it started to freeze out from molten iron more than half a billion years ago, according to seismologists at the

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