Types of propulsion system for spacecrafts

[bearnard55]

 

As we can see the most advanced and the most frequently used propulsion system for spacecrafts is nuclear. But can you name propulsion system that is rather good for space journeys as nuclear and in some time of development can substitute the most frequently used propulsion system?

[JimmyJW]

Of course there is such an engine, it's called a warp engine!) Jokes, jokes, but a lot of science fiction ideas have already come true, and I like this trend

[bearnard55]

3 hours ago, JimmyJW said:

Of course there is such an engine, it's called a warp engine!) Jokes, jokes, but a lot of science fiction ideas have already come true, and I like this trend

Personally, I`ve never heard about such kind of propulsion system but it was pretty interesting to read about it)
I found an article about so-called ``hybrid`` rocket. The term ``hybrid`` has been given to this rocket because it combines solid Hydroxyl Terminated Polybutadiene (HTPB) fuel and 90% Hydrogen Peroxide (H202) liquid oxidiser. This rocket has been build by a private space company from Scotland and it`s called SkyHy rocket
https://www.skyrora.com/