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Additive manufacturing of ultralong and architected single crystals

Nature, Published online: 21 October 2026; doi:10.1038/s41586-026-11185-0

A free-form additive manufacturing method that uses alternating and pulsed heat inputs is described for fabricating metre-tall, centimetre-diameter single crystals of Ti-6Al-4V, as well as hard-to-process refractory metals, including W, Mo, Nb and MoNb alloys.

Earliest siphuncle-bearing cephalopod from the early Cambrian

Nature, Published online: 29 July 2026; doi:10.1038/s41586-026-10868-y

Early Cambrian Eoceras shaanxiense gen. et sp. nov. preserves septa and a segmented tube resembling a primordial siphuncle, extending cephalopod origins and revealing early assembly of chambered shells used for buoyancy regulation.
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