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Spending 340 days aboard the International Space Station between 2015 and 2016 caused changes in astronaut Scott Kelly's body, from his weight down to his genes, according to the results of the NASA Twins Study, released Thursday.The majority of changes that occurred in Kelly's body, compared with his identical brother, Mark, on Earth, returned to normal once he came back from the space station. The study results suggest that human health can be "mostly sustained" for a year in space, the researchers said.On a call with reporters Thursday, Mark thanked Scott for his service to the country and commitment to science by spending a year in space without knowing how it would affect him."I got all the glory, and you got all the work," Scott said, chiding his twin."And I got people coming to my house for tubes of blood," Mark replied in reference to the scientific samples taken during Scott's mission; Scott was collecting the same samples from himself to send back to researchers on Earth.The results show "the resilience and robustness of the human body," said Steven Platts, deputy chief scientist for NASA's Human Research Program, which coordinated the study.Coincidentally, the results are being released just in time for the 58th anniversary of the first manned spaceflight by Soviet cosmonaut Yuri Gagarin.But the much-anticipated study reveals areas that may require countermeasures or safeguards when preparing for longer space missions or missions to deep space, like Mars.The molecular, physiological and behavioral changes were divided into low-, mid-level and high-risk groups. Scott's change in body mass and microbiome were considered low-risk. Shifts in collagen regulation and blood vessel fluid management were mid-level, and genomic instability was regarded as potentially high-risk."When we go into space and experience microgravity and travel at speeds like 17,500 miles an hour, our bodies adapt and continue to function and, by and large, function extremely well," Platts said.The study, which includes the work of 84 scientists who made up 10 teams from 12 universities in eight states, all studying different aspects of the human body in space, was published Thursday in the journal 2227

Target capped off its best year in more than a decade with a strong holiday shopping season.Sales at Target stores open at least a year grew 5 percent last year — its best performance since 2005.Target's stellar 2018 got a big boost from the holiday season. Comparable sales grew 5.3 percent during its most recent quarter compared with last year. Its digital sales grew 31 percent.The big-box retailer gained market share in key categories like clothes and home furnishings during the holidays and got a boost from the growing economy. Target said foot traffic to stores was up.Target's stock rose nearly 6% during pre-market trading Tuesday, despite thinner profit margins from fulfilling online orders. Target waived its minimum order requirement on online orders during the holidays.The gap between retail's best and worst performing companies widened during the holidays and Target is among the winners."We have been driving an ambitious agenda to transform," CEO Brian Cornell said in a news release Tuesday.The company's strategy to compete against Amazon and Walmart by focusing on Millennials and young parents with affordable brands and offering a wider array of merchandise is paying dividends.Parents are crucial to Target's success because they spend more every year than shoppers without children.Investments in its stores have helped, too. Target has aggressively remodeled hundreds of stores, built out delivery and buy-online-pickup-in-store capabilities, and built small stores to extend its reach within cities and college campuses.Target also launched more than 25 exclusive brands, such as Goodfellow, a clothing label, and A New Day, a homegoods label, that burnish its trendy image."Target's strategic initiatives announced two years ago are clearly bearing fruit, with its online push continuing to generate impressive gains," said Charlie O'Shea, analyst at Moody's.Target has succeeded recently, but a parade of top retailers reported uneven results this earnings season. Some, including Walmart, TJX and Best Buy thrived. But L Brands-owned Victoria's Secret, JCPenney and Gap struggled.Kohl's sales at stores open at least a year grew 1 percent during the holidays, the company announced Tuesday. Like Target, 2250

Sorry, Julia Roberts, Usher, Pink, and even U.S. Secretary of Energy Rick Perry — you've been duped.Adam Mosseri, chief of the Facebook-owned platform, wants users to know the service isn't getting ready to use your photos against you."Heads up!" Mosseri wrote in a post on his verified Instagram Story."If you're seeing a meme claiming that Instagram is changing its rules tomorrow, it's not true."The meme, which appeared as a block of text, went viral on Tuesday claiming Instagram is planning to roll out new changes to its privacy policy to let old messages and private photos be used in court cases against its users."Everything you've ever posted becomes public from today," the post states. "Even messages that have been deleted." 750

Some cats may seem a little more aloof than dogs, but they respond to the people they've bonded with in a similar way, according to a new study.Research at Oregon State University has shown that cats can form secure or insecure bonds with their owners. The researchers now believe the trait isn't specific to dogs, as similar research has shown, since it now applies to cats.During human attachment behavior studies, researchers look at how babies respond when they're reunited with their parent or caregiver after a short absence. When they're reunited, securely bonded babies return to exploring their surroundings in a relaxed way. About 65% of babies have a secure attachment. But insecurely attached babies will either avoid their parent or cling to them.The same tests have been simulated with primates as well. After applying it to dogs, babies and primates, the researchers wanted to see what would happen when they added cats and kittens to the scenario.The cats and kittens would individually spend two minutes in a room with their owner or caregiver. Then, the person would leave the room for two minutes, followed by a two minute reunion. This is called a "secure base test."About 65% of the cats and kittens were found to be securely bonded to their owners. Their finding shows that the cats' bonds with people were stable in adulthood, and not just present in kittens.The securely attached cats will continue to explore their surroundings after their owner returned, as well as pay attention to their owner. The insecurely attached cats showed signs of stress, like twitching tails, licking lips, avoiding their owner or jumping in their lap and not moving, which is a sign of ambivalence.A study detailing the findings published Monday in the journal 1778

Taco Bell announced this week changes to its menu, including the removal of nine menu items. Here are the items Taco Bell is removing from its menu: Beefy Mini QuesadillaChips & SalsaChipotle Chicken Loaded GrillerDouble Decker? TacoCool Ranch & Fiery Doritos Locos TacosDouble TostadaPower Menu BurritoXXL Grilled Stuft BurritoAlso beginning on Sept. 12, Taco Bell is changing its combo meal numbers. For instance, a three-taco combo will be the No. 1. The changes are an effort to declutter the menu. The menu will feature 10 lunch and dinner combos and three breakfast combos. 599

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