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| News in Brief Dried Earth microbes could grow on Mars with just a little humidity Jun 25 2019 6:00 AM Showing that salt-loving bacteria can double their numbers after absorbing damp air has implications for life on other planets. READ MORE  |
| News 3-D mammograms are popular, but are they better than 2-D? Jun 24 2019 12:09 PM The use of digital breast tomosynthesis, a newer breast cancer screening technology with limited evidence, has risen in recent years. READ MORE |
| News Gut microbes might help elite athletes boost their physical performance Jun 24 2019 11:00 AM Veillonella bacteria increased in some runners' guts after a marathon, and may make a compound that might boost endurance, a mouse study suggests. READ MORE |
| News Capuchin monkeys' stone-tool use has evolved over 3,000 years Jun 24 2019 11:00 AM A Brazilian archaeological site reveals capuchins' long history of practical alterations to pounding implements, researchers say. READ MORE |
| News The highest-energy photons ever seen hail from the Crab Nebula Jun 24 2019 7:00 AM An experiment in Tibet spotted photons with over 100 trillion electron volts of energy. READ MORE |
| Feature New approaches may help solve the Lyme disease diagnosis dilemma Jun 23 2019 7:00 AM Lyme disease is hard to detect, but scientists are investigating new diagnostic approaches. READ MORE |
| News Parasites ruin some finches' songs by chewing through the birds' beaks Jun 21 2019 11:39 AM Parasitic fly larvae damage the beaks of Gal��pagos finches, changing their mating songs and possibly causing females to pick males of a different species. READ MORE |
| News The cosmic 'Cow' may be a strange supernova Jun 21 2019 10:54 AM New observations suggest the strange bright burst called the 'Cow' was a supernova, rather than a shredded star. READ MORE |
| News How NASA's portable atomic clock could revolutionize space travel Jun 21 2019 7:00 AM An atomic clock designed to enable self-driving spaceships and GPS-like navigation on other planets is about to take a yearlong test flight. READ MORE |
| News Lost wallets are more likely to be returned if they hold cash Jun 20 2019 3:45 PM Worldwide, return rates of lost wallets goes up as the money inside increases, contradicting the idea that people act in their own self-interest. READ MORE |
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