There are essentially three parameters preventing the proliferation of space travel outside of the purview of trained astronauts and a handful of ultra-wealthy space tourists. Of course, those would ...

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

After years of rumors and experimentation behind closed doors, the Mazda rotary engine is officially back. The Vision X-Coupe, a plug-in hybrid concept showcased at the 2025 Japan Mobility Show, has ...

View post: The 2026 Lexus ES’s Design Shift is One of the Most Dramatic I’ve Ever Seen. Here Are My Thoughts. When it comes to engines, the Wankel rotary is one of the lightest and smallest there is, ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...