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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

President Donald Trump's re-election campaign raised more than million in the first fundraising quarter of 2019 -- an amount that rivals the combined fundraising haul of the top two Democrats in the first quarter and underscores his enormous financial head start over the crowded field of Democrats jockeying to face him in 2020.Trump's re-election effort now has a substantial .8 million remaining in the bank, Tim Murtaugh, the campaign's director of communications, told CNN on Sunday. While Trump builds a massive war chest, 18 Democrats -- with more considering bids -- are competing for their party's nomination.Vermont Sen. Bernie Sanders leads Democratic fundraising with .2 million raised during a shorter window than Trump, 41 days. In the No. 2 fundraising slot: California Sen. Kamala Harris with million.Sanders, making his second bid for the presidency, has the biggest war chest of the Democratic field, ending March with million remaining in the bank.Trump's "strategy is to raise as much money as possible and to control the national conversation," said Nathan Gonzales, editor of the nonpartisan political analysis site, Inside Elections.But Gonzales and Democratic strategists say the total fundraising picture for Democrats shows the party's donors remain energized and will plow big sums into the general-election battle."I don't think this presidential race is going to be decided by money," Gonzales said. "The president's going to have plenty of money, and the Democratic nominee will have plenty of money."The 10 Democrats who have announced first-quarter fundraising numbers so far have collected a combined .6 million -- already surpassing the .6 million the entire Democratic presidential field had collected during the early months of the 2016 election cycle.Even more Democratic totals will come Monday when candidates file reports with the Federal Election Commission.Another sign of Democratic donor enthusiasm: South Bend, Indiana, Mayor Pete Buttigieg, who exceeded expectations with a million first-quarter haul for his exploratory committee, raised million within hours of formally launching his presidential campaign on Sunday, his spokeswoman Lis Smith announced on Twitter"The momentum is clearly on the left," said Jon Soltz, president of VoteVets, a progressive group. "Democratic money will consolidate" behind the party's nominee in 2020.Trump, who built his unorthodox 2016 campaign on online, small-dollar donors, never stopped running for office. He filed his paperwork for re-election on the day he took the oath of office in January 2017.He continues to tap grassroots donors for support. His campaign said that nearly 99% of donations were 0 or less, with an average contribution of .26.Trump's first-quarter haul exceeds the million his campaign and affiliated committees brought in during the last three months of 2018. But it does not set records for a presidential fundraising quarter.President Barack Obama, who did not begin collecting money in earnest for his reelection until April 2011, raised nearly million during the first three months of actively campaigning for a second term. 3195

Puerto Rico is still feeling aftershocks following a 6.4 magnitude earthquake earlier in the week. On Friday, a 5.2 magnitude aftershock shook the island's southern coast. Friday's 5.2 earthquake was felt primarily in the southwest corner of the island, according to the USGS.Friday's aftershock marked the 13th earthquake of a 4.5 magnitude or stronger. A 4.6 magnitude earthquake also hit the southern coast of Puerto Rico earlier on Friday. The 6.4 magnitude earthquake caused strong to very strong shaking along the island's southern coast. Friday's 5.2 magnitude aftershock caused strong shaking in the same areas. 633

Subaru of America is issuing two recalls for more than 400,000 vehicles.The recalls cover as many as 466,205 late-model Imprezas and Crosstreks, 156

Sen. Bernie Sanders on Monday released a decade of tax returns, providing new insight into how the Democratic socialist senator from Vermont 153