Researchers from Mount Sinai, NASA, and Space Tango have launched miniature human hearts and brains to the International Space Station to study how microgravity and radiation affect organs and potentially accelerate aging. “If people are going to be living and working in space, then we need to understand what’s going to happen to them,” David Sachs, assistant professor of surgery at the Icahn School of Medicine at Mount Sinai, told ABC News. “But also, because it’s interesting as a model of accelerated aging for studying people on Earth.” From the report: The mini organs launched aboard commer