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Wednesday

Masked and unmasked people make their way through Grand Central Market in Los Angeles, California on June 29, 2021 as World Health Organization (WHO) urges fully vaccinated people to continue wearing masks with the rapid spread of the Delta variant. Frederic J. Brown/AFP via Getty Images hide caption

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Frederic J. Brown/AFP via Getty Images

A paramedic with Falck Northwest ambulances treats a man experiencing heat exposure during a heat wave in Salem, Ore. Nathan Howard/AP hide caption

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Nathan Howard/AP

Tuesday

An artistic image of what happens when a monstrous black hole collides with — and gulps down — a neutron star the size of a large city. Carl Knox/OzGrav/Swinburne hide caption

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Carl Knox/OzGrav/Swinburne

When A City-Size Star Becomes A Black Hole's Lunch, The Universe Roils

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The process for investigating the Champlain Towers South collapse will involve trying to reconstruct parts of the building and look for how the critical pieces failed, structural engineering consultant John Pistorino says. Joe Raedle/Getty Images hide caption

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Joe Raedle/Getty Images

A Structural Engineer Explains How The Florida Condo Collapse Will Be Investigated

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Timothy Dominique, 62, lives in a donated RV parked next door to the family home where he was staying when Hurricane Laura hit Lake Charles last year. He says he received nothing from FEMA because he does not own the home and didn't have a formal rental agreement. Ryan Kellman/NPR hide caption

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Ryan Kellman/NPR

Why FEMA Aid Is Unavailable To Many Who Need It The Most

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Frank Ramspott/Getty Images

Organic Chemistry Helped Me Embrace My Identities

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Monday

Correlation, Not Causation: Brood X Cicadas And Regional Bird Deaths

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A computer-enhanced image of the HIV virus. Callista Images/Getty Images/Image Source hide caption

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Callista Images/Getty Images/Image Source

Protecting The Immuno-Compromised Against COVID Could Be Key To Ending The Pandemic

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Friday

Asa Mathat/TED / Asa Mathat

Sylvia Earle: My Wish? To Protect Our Oceans

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Courtesy of TED

How coastal conservation can save marine life and fishing practices

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Ryan Lash / TED

What should you look for when shopping for seafood?

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Ryan Lash/Ryan Lash/TED

Why whales are essential to the health of our oceans

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This photomicrograph depicts Leishmania donovani parasites contained within a canine bone marrow cell. One of the more dangerous of 20 different species of Leishmania, L. donovani is endemic to parts of India, Africa, and South-West Asia. Dr. Francis W. Chandler/CDC hide caption

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Dr. Francis W. Chandler/CDC

A doctor reviews a PET brain scan at Banner Alzheimer's Institute in Phoenix. The drug company Biogen Inc. says it will seek federal approval for a medicine to treat early Alzheimer's disease. The announcement was a surprise because the company stopped two studies of aducanumab in 2019 after partial results suggested it was not working. Matt York/AP hide caption

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Matt York/AP