Scientists have long dreamed of plucking those naive cells from a young human ... clinics and establishing the world's first human embryonic stem cell line, he and other scientists got a lot ...

Learn more about the National Academies’ various programs designed to connect, engage, and inspire. In 2005, the National Academies released the book, Guidelines for Human Embryonic Stem Cell Research ...

"This is really a textbook image of a human day-14 embryo," Prof Hanna says, which "hasn't been done before". Instead of a sperm and egg, the starting material was naive stem cells which were ...

These are found in an early embryo. These cells are able to divide continuously. Embryonic stem cells are pluripotent. This means that all of the genes in an embryonic stem cell can be expressed ...

D uring embryonic development, cells start out as pluripotent, or have the potential to become many different cell types ...