Vials of the HPV vaccination drug Gardasil. Doctors and public health experts say the new version of the vaccine could protect more people against cancer. Matthew Busch for The Washington Post/Getty Images hide caption

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Matthew Busch for The Washington Post/Getty Images

Spraying sea salt into the atmosphere to increase the reflective cloud cover over oceans is the way some scientists think they might be able to bring down Earth's temperature. At least they'd like to safely test the idea on a small scale. Pixza/Getty Images hide caption

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Pixza/Getty Images

Scientists Who Want To Study Climate Engineering Shun Trump

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Bill Kochevar received an implanted brain-recording and muscle-stimulating system that allowed him to move limbs he hadn't been able to move in eight years. Cleveland FES Center hide caption

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Cleveland FES Center

Paralyzed Man Uses Thoughts To Control His Own Arm And Hand

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EVATAR is a book-size lab system that can replicate a woman's reproductive cycle. Each compartment contains living tissue from a different part of the reproductive tract. The blue fluid pumps through each compartment, chemically connecting the various tissues. Courtesy of Northwestern University hide caption

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Courtesy of Northwestern University

Device Mimicking Female Reproductive Cycle Could Aid Research

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The Truth Is, Lying Might Not Be So Bad

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There's overwhelming consensus that breast-feeding is the optimal way to feed an infant. But the topic of how breast-feeding may influence cognitive ability is controversial. Guerilla/Getty Images hide caption

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Guerilla/Getty Images

Breast-Fed Kids May Be Less Hyper, But Not Necessarily Smarter, Study Finds

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Nearly two-thirds of cell mutations that cause cancer are caused by random error, a study found. Steve Gschmeissner/Science Source hide caption

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Steve Gschmeissner/Science Source

Cancer Is Partly Caused By Bad Luck, Study Finds

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A new study shows that when infants and young children grow up in households without enough to eat, they are more likely to perform poorly at school years later. Daniel Fishel for NPR hide caption

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Daniel Fishel for NPR
Brookings Papers on Economic Activity

The Forces Driving Middle-Aged White People's 'Deaths Of Despair'

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How The 'Scarcity Mindset' Can Make Problems Worse

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Of the million or so Americans a year who get sepsis, roughly 300,000 die. Unfortunately, many treatments for the condition have looked promising in small, preliminary studies, only to fail in follow-up research. Reptile8488/Getty Images/iStockphoto hide caption

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Reptile8488/Getty Images/iStockphoto

Doctor Turns Up Possible Treatment For Deadly Sepsis

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Researchers used online data to model the vaccination rate in communities affected by an outbreak of mumps in Arkansas. Maimuna Majumder/HealthMap; Alyson Hurt/NPR hide caption

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Maimuna Majumder/HealthMap; Alyson Hurt/NPR

A baby receives the rotavirus vaccine during a clinical trial in Niger. The new vaccine is the first designed specifically for children in sub-Saharan Africa. It doesn't require refrigeration and will be cheaper than ones currently available. Krishan Cheyenne/MSF hide caption

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Krishan Cheyenne/MSF

Scientists have developed a smartphone app to measure sperm count at home. Hadi Shafiee/Brigham and Women's Hospital, Harvard Medical School hide caption

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Hadi Shafiee/Brigham and Women's Hospital, Harvard Medical School

A kea parrot picks at the antenna of a vehicle in New Zealand. Ullstein Bild/ullstein bild via Getty Images hide caption

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Ullstein Bild/ullstein bild via Getty Images

This Parrot Has An 'Infectious Laugh,' Scientists Say

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Embryoids like this one are created from stem cells and resemble very primitive human embryos. Scientists are studying them in hopes of learning more about basic human biology and development. Courtesy of Rockefeller University hide caption

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Courtesy of Rockefeller University
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Ketamine For Severe Depression: 'How Do You Not Offer This Drug To People?'

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The American Iron and Steel Institute is one of the trade groups that wants Congress to undo the stronger safety regulation enacted in 2016 by the Occupational Safety and Health Administration. michal-rojek/Getty Images/iStockphoto hide caption

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michal-rojek/Getty Images/iStockphoto

Congress May Undo Rule That Pushes Firms To Keep Good Safety Records

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Graveyard of Staghorn coral, Yonge reef, Northern Great Barrier Reef, October 2016. Greg Torda /ARC Centre of Excellence for Coral Reef Studies hide caption

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Greg Torda /ARC Centre of Excellence for Coral Reef Studies