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Milo Cress says straws are among the most common disposable plastic items, along with bottle caps, that can be found polluting oceans and beaches. Milos Bicanski/Getty Images hide caption

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Milos Bicanski/Getty Images

One Child's Outsized Influence On The Debate Over Plastic Straws

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The way cows digest food takes a lot of energy and generates a lot of heat. This makes them lose their appetite and produce less milk. Mose Buchele/KUT hide caption

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Mose Buchele/KUT

As Milk Production Cools In Summer, Farmers Try To Help Cows Take The Heat

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Girard Children's Community Garden in Washington, D.C. was created on a vacant lot and is now a thriving community space for neighborhood kids, many of whom are from low-income communities of color. Pearl Mak/NPR hide caption

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Pearl Mak/NPR

A peacock butterfly in Hurworth-on-Tees, England, in 2013. Peacock butterflies are one of the species the Big Butterfly Count is tracking, with the help of citizen volunteers. Chris Golightly/Flickr hide caption

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Chris Golightly/Flickr

Sleep Scientist Warns Against Walking Through Life 'In An Underslept State'

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A pharmacy technician prepares syringes containing an injectable anesthetic in the sterile medicines area of the inpatient pharmacy at the University of Utah Hospital in Salt Lake City. Rick Bowmer/AP hide caption

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Rick Bowmer/AP

Doctors Raise Alarm About Shortages Of Pain Medications

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An autonomous tank is demonstrated in France last month. Leading researchers in artificial intelligence are calling for laws against lethal autonomous weapons. They also pledge not to work on such weapons. Christophe Morin/IP3/Getty Images hide caption

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Christophe Morin/IP3/Getty Images

An early prototype of the silicon-chip-sized particle accelerator that physicists at Stanford are working on. Eventually, miniature accelerators might have a role in radiating tumors, the scientists say. SLAC National Accelerator Laboratory hide caption

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SLAC National Accelerator Laboratory

Physicists Go Small: Let's Put A Particle Accelerator On A Chip

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Archaeologists Find 14,500-Year-Old Bread

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UCLA researchers are using a radioactive tracer, which binds to abnormal proteins in the brain, to see if it is possible to diagnose chronic traumatic encephalopathy in living patients. Warmer colors in these PET scans indicate higher concentrations of the tracer. UCLA hide caption

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UCLA
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More Screen Time For Teens Linked To ADHD Symptoms

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The planet Jupiter now has a total of 79 identified moons. QAI Publishing/UIG via Getty Images hide caption

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QAI Publishing/UIG via Getty Images

Galileo Would Be Stunned: Jupiter Now Has 79 Moons

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