For some, the launch of a rocket into space to resupply the International Space Station is a routine mission. But for a group of students working with the Adler Planetarium in Chicago, it is a historic moment marking the achievement of a lifetime. VOA's Kane Farabaugh has more from Chicago.
Scientists in Israel have revealed what they say is the world's first 3D-printed heart using human tissue. It's hoped the small heart will pave the way for transplants without donors, when every hospital might have access to 3D organ printers. Faith Lapidus reports.