Story perspectives

Revolutionary 3D Printing for Seafloor Structures Planned by Cornell

2/4/2026

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Summary

Story summary

Cornell University researchers are developing a method to 3D print structures directly on the seafloor.
The team formulates a concrete mix primarily from seafloor sediment to minimize environmental disruption and logistical challenges.
Led by Sriramya Nair of Cornell University, the team has secured a $1.4 million DARPA grant to develop the technology.
They will demonstrate underwater 3D printing in a March 2026 competition by printing a concrete arch.

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Story summary

Cornell University researchers are developing a method to 3D print structures directly on the seafloor.
The team formulates a concrete mix primarily from seafloor sediment to minimize environmental disruption and logistical challenges.
Led by Sriramya Nair of Cornell University, the team has secured a $1.4 million DARPA grant to develop the technology.
They will demonstrate underwater 3D printing in a March 2026 competition by printing a concrete arch.