|
|
|
|
|
|
by Kim_Bruning
964 days ago
|
|
|
Water is annoying: when you heat it, some of the energy goes into dissociating it rather than accelerating it. In the end you apparently get pretty bad performance out of it. In deep space you don't really care about the volume of your fuel tank, so then it does make sense to use something light like hydrogen. |
|
|