For the very first time, researchers captured incredible real-time, three-dimensional images and videos of a human embryo implanting into artificial uterine tissue. This implantation used a lab matrix that was not designed for in vitro fertilization (IVF), but the study’s authors said the new footage of the reproduction stage could potentially inform better IVF techniques. Implantation failure is one of the main causes of infertility and miscarriages.