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Global warming linked with rising antibiotic resistance

Global warming linked with rising antibiotic resistance

Science
May 21 (UPI) -- New research suggests rising temperatures are encouraging antibiotic resistance in cities across the United States. Until now, health researchers assumed antibiotic resistance was primarily the result of overprescription and overuse. But a new study suggests climate change is also to blame. "The effects of climate are increasingly being recognized in a variety of infectious diseases, but so far as we know this is the first time it has been implicated in the distribution of antibiotic resistance over geographies," Derek MacFadden, an infectious disease specialist and research fellow at Boston Children's Hospital, said in a news release. "We also found a signal that the associations between antibiotic resistance and temperature could be increasing over time." MacFadden and ...
Seeds of hope: The gardens springing up in refugee camps

Seeds of hope: The gardens springing up in refugee camps

Science
"Syria is green," says Aveen Ismail. "But here it was like a desert until we started growing plants and trees." The 35-year-old fled Damascus with her family in 2012. She now lives in the Domiz Camp in Northern Iraq, where roses, lemon trees and marigolds have sprung up amid the concrete and dust."Creating a garden was a way for us to heal and remind us of home," she says.Alfonso Montiel of the Lemon Tree Trust has sat down in many of the tiny green spaces at the camp."You'll see in some cases it's full of roses," he says. "The first question you ask yourself is, why not food?"Flowers, says Montiel, give a sense of the passage of time. "It gives them a sense of hope. It gives a sense of control of their environment." The Lemon Tr...
Scientists detect oxygen legacy of first stars

Scientists detect oxygen legacy of first stars

Science
Media playback is unsupported on your device Astronomers have made the most distant ever detection of oxygen.They observed it in a galaxy of stars that existed just 500 million years after the Big Bang. But what is really fascinating is that this oxygen can only have been produced in an even older group of stars that would have dispersed it when they died and blew themselves apart. That means we could be witnessing the traces of events that occurred a mere 250 million years after the Big Bang. Scientists reporting in the journal Nature say this takes us back into the theorised epoch known as Cosmic Dawn when the Universe was first bathed in light.The team cannot see this critical period directly - it is beyond the capability of current technol...
NASA engineers teach Mars rover Curiosity to drill again

NASA engineers teach Mars rover Curiosity to drill again

Science
May 18 (UPI) -- Engineers at NASA's Jet Propulsion Laboratory are preparing to add percussion to an improvised drill technique already being used by the Curiosity rover on Mars. Curiosity and its drill haven't had a full range of motion since 2016 when one of the drill's motors short circuited. Over the last year, engineers have developed a workaround drilling technique called Feed Extended Drilling, or FED, which uses the rover's robotic arm to direct and push the drill into the ground as the drill bit spins. In February, Curiosity used the FED technique to once again drill into the Martian surface. The effort failed to yield a rock sample, but it was still a partial success, producing data that allowed scientists to fine-tune the method back in the lab. Now, engineers are preparing to ...
Astronomers produce detailed maps of star-forming region in Orion A

Astronomers produce detailed maps of star-forming region in Orion A

Science
May 18 (UPI) -- Newly published maps, produced by a research team led by Yale astronomers, has revealed the Orion A molecular cloud in unprecedented detail. Located 1,350 light-years from Earth, the Orion A molecular cloud is the closest star-forming region of massive stars. Found within Orion A are regions similar to the star-birthing environs that produced our sun. "Our maps probe a wide range of physical scales needed to study how stars form in molecular clouds, and how young stars impact their parent cloud," Yale postdoctoral associate Shuo Kong said in a news release. The maps were compiled using observations collected by a single-dish telescope and an interferometer as part of the CARMA-NRO Orion Survey. "Our survey is a unique combination of data from two very different telescopes...