The major objection to the use of embryonic stem cells for scientific research seems overcome by the promising development of a way to extract cells and propagate stem cell lines without killing the ...

Some newly reported clumps of cells growing in lab dishes have been hailed as the closest things to human embryos that scientists have ever made in the lab. These entities are human embryo models — ...

A China-led team has built the world’s first mini-womb on a chip that can fully replicate the “invasion” of human embryos in the uterus during early pregnancy. Their 3D model on a microfluidic chip ...

The birth of Molly Gibson using an embryo from 1992 broke a record set by her sister, Emma, in 2017. The embryos were donated when the girls’ mother was herself a toddler. By Maria Cramer In 1992, ...