This Week in Science

In Science this week, researchers from Stanford University reported on the discovery that the Wnt family of proteins can affect the division of embryonic stem cells based on their positions outside of the dividing cells, rather than the concentration of their signals as previously thought. The team attached Wnt3a molecules, known to maintain stem cell pluripotency, to beads that were then introduced to dividing stem cells and observed the effects using time-lapse microscopy.

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The New York Times and ProPublica look into the close relationship between a startup and Memorial Sloan Kettering Cancer Center.

Yahoo News reports millions of dollars are being transferred from NIH, CDC, and other programs to pay for the housing of detained undocumented immigrant children.

Researchers gave a handful of octopuses MDMA to find that they too act more social on the drug, Gizmodo reports.

In Science this week: in vitro generation of human reproductive cells, and more.