The technology sounds like it's been plucked from a science-fiction film — but it's all too real. A number of companies now offer prospective parents the chance to "score" embryos fertilized through ...

The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

Using CRISPR-based engineering methods to prompt stem cells to organize into embryo-like structures, scientists were able to create 'programmable' cellular models of embryos without ever experimenting ...