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Last year, 9,000 deceased donor kidneys were discarded due to storage and time limitations. A kidney “life support” machine could change that. Also, the SS United States will join Florida’s 4,300 artificial reefs—human-made places for fish and other marine life to live. How do these reefs work?The Effort To Save Thousands Of Donor Kidneys From Being WastedSylvia Miles was diagnosed with lupus in 2006, a chronic autoimmune disease that causes the body’s immune system to attack healthy tissue—including her kidneys.Miles, who lives in Indianapolis, was later diagnosed with advanced kidney disease, and was in need of a kidney transplant.Kidney diseases are one of the leading causes of death in the United States with 37 million people living with chronic kidney disease. Together with advanced kidney disease—the later stage of CKD—it cost Medicare billions of dollars in recent years.People like Miles, who need a kidney transplant, wait an average of five years—often on dialysis.But despite the long waitlists and organ shortages, around 9,000 kidneys from deceased donors last year were discarded due to perceived issues with their viability. A new Indiana-based organization, 34 Lives, is working to limit that waste and rehabilitate the organs.Read the rest of this article on sciencefriday.com.Ocean Liner SS United States Will Become An Artificial ReefThis week, after a notable career, the SS United States, a 1950s ocean liner, took her sunset cruise. Like many retirees, the ship is heading south—from Philadelphia to Florida—where she’ll be reinventing herself. In this next chapter, the SS United States will have new passengers: fish and other marine creatures. The ship will be sunk to the bottom of the sea and turned into an artificial reef, joining more than 4,300 artificial reefs off the coast of Florida.Other sunken ships have become artificial reefs in the past, which have helped boost marine life as well as scuba diving and fishing tourism. Host Flora Lichtman speaks with Scott Jackson, a regional specialized agent with the Florida Sea Grant and University of Florida IFAS extension, about the science behind artificial reefs, and what has been learned from decades of research.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.