I’m trying to find two anime/cartoons I watched as a teen but I can’t seem to track them down?

They were both from the 80s or early 90s. I saw them both on VHS and both were in colour.

#1. The only thing I clearly remember from this one is one of the characters was a skinny white dude with a huge brown afro hairstyle and giant nerd glasses, I think he was a sidekick scientist to the hero who had black hair and was quite young? I think there was a girl, maybe a lighthouse or ocean? There may have been a spaceship or submarine? I really want to find this so suggest anything and everything even remotely similar?????

#2. I have better memories of this one. It starts out on earth or an earth-like planet. There was a young man who is a pilot, and a teen girl, and there was a war (not sure if they were aliens or another country/planet?). But they escape in some sort of fighter and head into space. They crash in a disused section of a big spaceship of some sort and live there thinking they are the only survivors, but then I think they get found? I really want to see this one again too, so suggest whatever you can think of?

I’m fairly sure both were in English (can’t remember if that was their true language or cheesy dubbing tho)?