Researchers at the Children's Hospital of Philadelphia (CHOP) have created an artificial womb. Inside of the womb, they placed a premature lamb fetus. They then kept the fetus in the womb for four ...

Now, Colossal has announced that it's not only made a prototype for an artificial uterus, but also used it to culture fertilized single-cell marsupial embryos to over halfway through pregnancy.

Katherine Don at The Atlantic recently laid out the significant technical problems any attempt to develop an artificial uterus would face. 1. We actually don't know that much about the placenta.