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Susan Bailey is a self-described “space nerd.” But she’s also a professor and biologist at Colorado State University. When she saw the request for researchers, she jumped at it. Her team was selected as one of 10 investigations selected for the study that had one simple goal: to study the effects of spaceflight on the twins, Bailey says. Scott Kelly soon became the guinea pig.“[I had to conduct] a lot of medical tests, a lot of MRI’s, cat scans, cognitive tests, blood draws, ultrasounds,” he recalls.He even had dots tattooed to his skin, so he knew exactly where those ultrasounds needed to be done.The results are now out, and there’s one big headline.“My telomeres got better in space,” Kelly says.Telomeres are the caps at the end of a strand of DNA that protect chromosomes, and those telomeres shorten as we get older.It shocked researchers, but Kelly’s telomeres got longer.“People will say, ‘Well is it the fountain of youth? What if we all go to space, you know?’” Bailey says smiling.But sadly, it’s not that simple. The minute Kelly returned to earth, those telomeres shortened rapidly and returned back to their normal length. But exactly what it means remains sort of a mystery—at least for now.“You know, I don’t think we’re going to send people to space and they’ll live forever as a result of this,” Kelly says. “But there might be some ancillary benefit.”Bailey says it could open the door to a potential host of new studies on aging. But for now, she’s just glad she could play a role in a breakthrough study.“It's like serving your country, serving the astronauts,” Bailey says. “[We’re] trying to do our part to really push space exploration forward.”According to Bailey, life doesn't get much better than that. 1736

South Korea is the sixth biggest US trading partner and a key military ally in Asia. It's also the third largest exporter of steel to the US, accounting for about 10% of US imports of the metal by volume, according to S&P Global Platts. 240

Strasbourg's famed Christmas Market is one of the oldest in Europe and draws millions of visitors each year. The suspect entered the perimeter of the market by the city's Corbeau Bridge, and began shooting at passers-by on the Rue des Orfèvres at about 8 p.m. local time, when many were in the middle of their Christmas shopping.Anti-terror police descended on the market and attempted to apprehend the suspect as he traversed several streets. He exchanged fire with security forces, suffering an injury to his arm. "Throughout this journey, he repeatedly opened fire with a handgun and used a knife which he both used to seriously injure and kill," said Heitz, speaking in Strasbourg.The suspect then fled the scene by a taxi and headed to the city's Neudorf district, the Paris prosecutor's office said. Heitz had earlier said the destination was Neuhof, a more distant district of Strasbourg."The taxi driver stated that he had seen him in possession of a handgun and he had injuries," said Heitz. The man again exchanged fire with police after leaving the taxi, he added.Eight people were seriously wounded in the attack, Strasbourg police said Wednesday, with five others suffering from minor injuries.The counter terror section of the Paris prosecutor's office has opened an investigation for murder in connection with a terrorist enterprise, and attempted murder in connection with a terrorist enterprise, said Heitz. 1424

State officials recommended the city and county work better together on a plan that can be quickly implemented in the event of a future outbreak. 145

The academy cannot backfill the department's experienced officer pool, however. Nisleit said nearly 60 percent of SDPD officers have six years of experience or less. 165