To view this email as a web page, go here. 6/2/19 The Southern Ocean may be less of a carbon sink than we thought The water surrounding Antarctica may be belching more carbon dioxide than it takes in. Read More In a first, scientists took the temperature of a sonic black hole A lab-made black hole that traps sound, not light, emits radiation at a certain temperature, as Stephen Hawking first predicted. Read More A 50-million-year-old fossil captures a swimming school of fish Analysis of a fossilized fish shoal suggests that animals may have evolved coordinated group movement around 50 million years ago. Read More A new optical atomic clock’s heart is as small as a coffee bean Optical atomic clocks are extremely good at keeping time, and they’re on their way to becoming pocket watches. Read More How bacteria nearly killed by antibiotics can recover — and gain resistance A protein that pumps toxic chemicals from the microbes allows some of them to resurge. Read More One number can help explain why measles is so contagious The basic reproduction number, or "R naught," of measles shows how contagious the disease is compared with other pathogens. Read More Cave debris may be the oldest known example of people eating starch Charred material found in South Africa puts energy-rich roots and tubers on Stone Age menus, long before farming began. Read More Icy volcanoes on Pluto may have spewed organic-rich water Planetary scientists found ammonia-rich ice near cracks on Pluto, suggesting the dwarf planet had recent icy volcanoes. Read More This iconic Humboldt map may need crucial updates A seminal, 212-year-old diagram of Andean plants by German explorer Alexander von Humboldt is still groundbreaking — but outdated, researchers say. Read More Fossils reveal saber-toothed cats may have pierced rivals’ skulls Two Smilodon fossil skulls from Argentina have puncture holes likely left by the teeth of rival cats. Read More Privacy policy | Update Profile | Manage Subscriptions | Unsubscribe This email was sent by: Society for Science & the Public 1719 N Street NW Washington, DC, 20036, US
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