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The Guardian - UK
The Guardian - UK
Science
Hannah Devlin Science correspondent

Synthetic human embryos created in groundbreaking advance

A roller culture incubator used to grow synthetic mouse embryos in an earlier experiment in 2022.
A roller culture incubator used to grow synthetic mouse embryos in an earlier experiment in 2022. Photograph: Ahmad Gharabli/AFP/Getty Images

Scientists have created synthetic human embryos using stem cells, in a groundbreaking advance that sidesteps the need for eggs or sperm.

Scientists say these model embryos, which resemble those in the earliest stages of human development, could provide a crucial window on the impact of genetic disorders and the biological causes of recurrent miscarriage.

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