Mini Brains Just Got Creepier—They’re Growing Their Own Veins

The first human brain balls—aka cortical spheroids, aka neural organoids—agglomerated into existence just a few short years ago. In the beginning, they were almost comically crude: just stem cells, chemically coerced into proto-neurons and then swirled into blobs in a salty-sweet bath. But still, they were useful for studying some of the most dramatic brain disorders, like the microcephaly caused by the Zika virus.
Read more: https://www.wired.com/story/mini-brains-just-got-creepiertheyre-growing-their-own-veins/?source=Snapzu