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Sen. Bernie Sanders stood in the middle of Tuesday's debate stage as the clear frontrunner of Democratic nominating race, a position he has only ascended to in recent weeks. Standing in the middle put Sanders on the defensive, especially from more moderate candidates such as Mayors Michael Bloomberg and Pete Buttigieg. According to an 349

Some of my earliest memories of watching MSU football involved Charles Rogers. I remember being so excited to get my jersey signed by him as a kid. RIP Charles Rogers.— Zach Fanko (@zachfanko52) 207

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

Sen. Kamala Harris said on Monday that President Donald Trump's Twitter account should be suspended following his tweets about the whistleblower whose 163

Slain University of Utah student Mackenzie Lueck has been described by friends as a positive, outgoing person and a "bubble of happiness."Those that knew her are now mourning her death and trying to understand what happened after she left a park with a man in the early hours of June 17.Mackenzie was "a ball of light"Carly Reilly told 348