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Scientists have created mouse embryos in a dish, and it could one day help families hoping to get pregnant, according to a new study.

After 10 years of research, scientists created a synthetic mouse embryo that began forming organs without a sperm or egg, according to the study published Thursday in the journal Nature. All it took was stem cells. …

“Our mouse embryo model not only develops a brain, but also a beating heart, all the components that go on to make up the body,” said lead study author Magdalena Zernicka-Goetz, professor of mammalian development and stem cell biology at the University of Cambridge in the United Kingdom.

“It’s just unbelievable that we’ve got this far. This has been the dream of our community for years, and a major focus of our work for a decade, and finally we’ve done it.”