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This Sperm Donor Didn’t Think Much About His Side Gig—Until 20-Plus Children Surfaced

Decades after a stint as a prolific sperm donor, Peter Ellenstein’s biological brood continues to grow
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Dr. Lucy Jones on Preparing for a Catastrophic Earthquake

SoCal's go-to seismologist tells us about getting ready for what's to come
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Sorry, Plant Ladies. Your Ferns and Philodendra Aren’t Purifying the Air

A UCLA environmental health expert clears the air on how to actually breathe easier indoors
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When a California Man Was Dying, a Robot Delivered the Bad News

Kaiser Permanente is facing scrutiny after a bad prognosis is delivered via video screen
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Party Like Its 1969 at These Apollo 11-Themed Events Around L.A.

Celebrate the lunar landing's 50th anniversary in style
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If the U.S. Followed California’s Lead, Greenhouse Emissions Would Be Way Lower

California’s environmental protections are working, but the Trump administration wants to take away the state’s ability to self-regulate

What L.A. Life Is Like for a Scientist Who Spends Months Digging Up Dino Bones in Antarctica

The Natural History Museum’s Dr. Nate Smith has played volley at the bottom of the world—but trivia night in Bixby Knolls is cool too
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Millions of Tiny Earthquakes Happen Without You Even Noticing

New science finds 495 earthquakes shake SoCal every day–and they might be the key to predicting the Big One

Above the Surface and Below, L.A. Is Still an Oil Town

The petroleum industry’s influence on L.A. is vast and has shaped life here in unexpected ways—here’s how