The aerospike has been considered as a replacement for the bell-shaped nozzle rocket engine for nearly 70 years. The combination of artificial intelligence and 3D printing may finally make it happen.

M aingear is launching a ’90s-era horizontal desktop with modern components inside. The Retro95 is a beige sleeper build and is for anyone who is nostalgic for the days of Windows 95, floppy discs,