The signals orchestrating the transformation of cells into the highly organized structures of embryos have remained hidden from observation inside the womb. Now, scientists have illuminated early ...

Even as it forms within a cloud of gas and dust, a nascent star develops a doughnut-shaped disk around it. This is the “protoplanetary disk” that might spawn planets. Using an infrared telescope to ...

A recent Nature study evaluates post-implantation development in humans using embryo-like models based on genetically unmodified human naïve embryonic stem cells (ESCs). Study: Complete human day 14 ...