Jason Koebler and Sarah Emerson, reporting for Motherboard: Private emails between scientists working on a controversial genetic technology called "gene drive" were released last week. Obtained through a Freedom of Information Act (FOIA) request, their publication has been criticized by some as an attempt to discredit the science community. Gene drives are a genetic engineering approach with huge implications. They're meant to seed genetic traits -- one that stops mosquitoes from carrying malaria, for instance, or hampers invasive rodents' ability to reproduce -- in a population, and with terrifyingly high odds of inheritance. If things go wrong, gene drives could destabilize ecosystems. (So far, they've only been applied to yeast, fruit flies, and mosquitoes in a lab setting.) More ideally, they could wipe out deadly plagues by targeting their vectors, or give threatened species a fighting chance. Like any young technology, there are a lot of unknowns, and stakeholders are hoping to provide clarity at the United Nations Convention on Biological Diversity next year; the same convention where a proposed gene drive moratorium was rejected in 2016. The emails and other documents reveal details about gene drive's biggest funders, including DARPA, the US military's research agency.
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dryriver shares a report from Science Alert: According to a new study, it's possible that all iron-based weapons and tools of the Bronze Age were forged using metal salvaged from meteorites. The finding has given experts a better insight into how these tools were created before humans worked out how to produce iron from its ore. While previous studies had found specific Bronze Age objects to be made from meteoric metal -- like one of the daggers buried with King Tutankhamun -- this latest research answers the question of just how widespread the practice was. Albert Jambon, from the National Centre for Scientific Research (CNRS) in France, studied museum artifacts from Egypt, Turkey, Syria, and China, analyzing them using an X-Ray Fluorescence Spectrometer to discover they all shared the same off-world origins. "The present results complementing high quality analyses from the literature suggest that most or all irons from the Bronze Age are derived from meteoritic iron," writes Jambon in his published paper. "The next step will be to determine where and when terrestrial iron smelting appeared for the first time."
Boeing's CEO says the megarocket his company is helping to build for NASA will deliver astronauts to the Red Planet before billionaire Elon Musk's SpaceX. Space.com reports: According to Fortune, Boeing CEO Dennis Muilenburg was speaking on CNBC today when host Jim Cramer asked whether Boeing or SpaceX would "get a man on Mars first." "Eventually we're going to go to Mars, and I firmly believe the first person that sets foot on Mars will get there on a Boeing rocket," Muilenburg said, according to Fortune. Boeing is the main contractor for the first stage of NASA's giant Space Launch System , which is designed to launch astronauts on deep-space missions using the space agency's new Orion spacecraft. (United Launch Alliance, Orbital ATK and Aerojet Rocketdyne are also SLS contractors.) NASA hopes to build a "Deep Space Gateway" near the moon before using SLS and Orion vehicles to send explorers to Mars. The first test launch is scheduled for 2019. "Do it," Musk tweeted.