Welcome to Sunday and the best of The Conversation.

I raised a son who went through a lava-loving phase, but I just learned that volcanoes “breathe.”

The eruption of Mauna Loa, the world’s largest active volcano, in Hawaii last week led to one of our readers’ picks. Gabi Laske, a geophysicist at UC San Diego, describes a variety of methods scientists use to measure and observe volcanoes and predict when they are likely to erupt. “Breathing” is measured by a tiltmeter, which tracks very subtle changes on a volcano slope, Laske explains. She also tells us where that molten rock comes from.

In editors’ picks, Deion Scott Hawkins, a professor of argumentation and advocacy at Emerson College, explains why the Black community staged a mock funeral for Black Twitter after Elon Musk took over the social media giant – and why the idea of losing this online community concerns him.

And Robert Kunzman of Indiana University explains why he teaches a class on failure, centered on people from different professions sharing their shortcomings.

This week we’ll bring you articles about Ulysses S. Grant’s pending military promotion, the dynamics of gridlock in a divided government and the uncertain future of snow days.

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Emily Costello

Managing Editor

Readers' picks

Magma fountains through a fissure on Mauna Loa, becoming lava, on Nov. 30, 2022. K. Mulliken/USGS

Where Mauna Loa’s lava is coming from – and why Hawaii’s volcanoes are different from most

Gabi Laske, University of California, San Diego

A scientist who led one of the first projects to map the Hawaiian Islands’ deep volcanic plumbing explains what’s going on under the surface as Mauna Loa erupts.

Editors' picks

According to the CDC’s latest numbers, 65% of pregancy-related deaths occur in the first year following childbirth. Petri Oeschger/Moment via Getty Images

More than 4 in 5 pregnancy-related deaths are preventable in the US, and mental health is the leading cause

Rachel Diamond, Adler University

Many of the preventable pregnancy-related deaths documented by the CDC are directly attributable to failures and barriers in the maternal care system.

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