YC Demo Day: In lighter YC news, this week was Y Combinator's Demo Day, a two-day livestream of startups presenting in the VC firm's latest cohort. We have roundups from both days as well as a ...

Northrop Grumman has successfully completed its second Solid Motor Annual Rocket Technology Demonstrator (SMART Demo) static test at its facility in Promontory, Utah, US.

SMART Demo shows the effective implementation of new solid rocket motor technologies to improve motor performance. Northrop Grumman is also developing five new motors concurrently for the first ...