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The Embryos That Don’t Come From Eggs and Sperm

Human embryo models mimic the earliest development stages; they could offer a glimpse of the first weeks of pregnancy — a mysterious period for which natural embryos are seldom available — and potentially shed light on miscarriage, congenital anomalies, and other health issues. But how far should they go?

The Embryos That Don’t Come From Eggs and Sperm

We haven't written up this one. Undark has the full story — the link below goes straight to it.

Read the original at undark.org →

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Ask Ethan: If intelligent alien life exists, will we make contact?

For countless generations, humanity has gazed at the stars, planets, and great canopy of the Milky Way in the night sky, wondering who else or what else may be out there. Here in 2026, we’ve searched tens of thousands of star systems for signs of life, for signals of potentially intelligent extraterrestrial origin, including through radio…

Engineering Animals to Grow Human Organs — But Not Human Minds

Chimeras, or animals with human cells and tissues, are not new, and researchers have long used them to gain insights into diseases and even as a potential source of transplantable organs. But the research brings up thorny ethical questions regarding animal rights and the moral status of chimeric creatures.

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