Northrop Grumman's massive Manta Ray underwater test bed completed at ... Northrop last month teased its prototype during the Sea-Air-Space naval conference in Maryland. The image the company ...

Operated in collaboration with the Manta Trust, this annual festival provides an opportunity to swim alongside one of the ...

"Our successful, full-scale Manta Ray testing validates the vehicle’s ... global rapid deployment can be done without ...

It is also more energy-efficient than its previous iteration and can swim not just on the surface, but upward and downward, just like an actual manta ray. Another research team at MIT used the ...