There has certainly been information out there about SpaceX&#x27;s Raptor rocket engine...but I am unaware of how far they are along the development process:
<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Raptor_(rocket_engine)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Raptor_(rocket_engine)</a>