The central tunnel contract award closes the last major gap in Gateway’s buildout between New York and New Jersey, but full under-river boring remains years away as early works begin.

The aircraft has numerous features that are purpose built for pilot safety and durability in contested airspace.

Deep within Earth’s core, scientists are uncovering signs of a hidden structure that challenges long-standing models of the planet’s interior.

A 4D-printed structure pairs origami panels with a lattice core to fold flat for storage and bear heavy loads once deployed.

Different structures have different functions or purposes. The individual parts of any structure need to be selected, arranged and fixed together carefully to make sure the structure carries out its ...