05/08/2022

'Synthetic embryo' breakthrough but growing human organs far off

Stem cell scientists say they have created "synthetic embryos" without using sperm, eggs or fertilization for the first time, but the prospect of using such a technique to grow human organs for transplantation remains distant.

Do 'bouncing universes' have a beginning?

In trying to understand the nature of the cosmos, some theorists propose that the universe expands and contracts in endless cycles.

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