13 Days. This is the new length of time that scientists have been able to grow an embryo outside the womb.
On the one hand, this is very cool. It shows the miracle of the embryo, which the scientist comments on herself:
It had been “absolutely unbelievable”, she said, to see the “amazing, self-organising ability” of the cells. “They have to talk to themselves and together they make something more beautiful,” Zernicka-Goetz said.
On the other hand, we were all embryos once, so any experimentation is taking place at cost of someone’s life. I do realize that IVF isn’t terribly successful and that 70 percent of embryos once implanted in a womb don’t make it. That said, 30 percent do, and all of us were once embyros, so this is not something to take lightly. 
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