Australian researchers have developed the world's first bionic heart that pumps blood without a pulse. The device, called BiVACOR, was successfully implanted into a sheep. It uses magnetic levitation instead of sacs to pump blood, avoiding wear and tear that plagues traditional artificial hearts. The bionic heart could last up to 10 years, significantly longer than previous designs. Researchers hope to begin human trials within 3-5 years if additional testing and funding are secured.