D AI enters a new era as Tripo, a pioneer in large-scale, general-purpose 3D model innovation, unveils Tripo 3.0, the newest ...

Scientists are testing ways to construct buildings on Mars and the moon without hauling materials from Earth. One possible solution: 3D printed melted regolith.

A version of this article appears in print on April 13, 2025, Section A, Page 8 of the New York edition with the headline: As Japan’s Commuters Slept, a 3D-Printed Train Station Rose in 6 Hours.