5e Spelljammer

I have heard alot about spelljammer but have never played. i love 3e and 5e and think it would be cool if someone started a 5e game of Spelljammer. i dont know if specific classes or new races would be needed but it sounds awesome to me.

What is spelljammer?

Spelljammer are magically powered spaceships (Though they look a lot like unusual shaped mast and sail ships.)
They can travel through the astral sea. A bit of suspension of belief is necessary but Spelljammers are fun.

Astral Sea?!? Phlogiston! Magical, combustible, breathable, inter-prime hydrogen. (The Greeks believed in some weird stuff. Good D&D fodder though.)

Also, there are space hippos with guns. And giant space hamsters. And spider-people slavers (slavers who are spider-people, that is, not slavers of spider-people). And THE Spelljammer is basically the space D&D Black Pearl, but shaped like a giant manta ray.

Wow, those 2e devs had some spectacular substances as muses....