On: Are Aerospike Engines Better Than Traditional Rock...

[DuskStar]

And the orbital velocity is also much lower, which makes talking about Mars SSTOs kind of weird in the same sense that talking about Lunar SSTOs is rather weird. (If you need a multi-stage rocket to get off of the Moon, I really want to see your mission architecture)

I think Starship is intended to go SSTE (Single Stage to Earth) from Mars, for instance.

[m4rtink → DuskStar]

Yep, Starship should be definitely SSTO from Mars, Moon and likely about any non-Earth survivable (hello Venus!) landing spot in the Solar System.