How to pronounce“planetology”in English

and helium gas. So I think it's thrilling that we've gone from the era where there was a big debate about whether there are planets around otherstars, to the point where we can talk about what the planets are composed of and really do kind of differential planetologybetween the 400 planets that we know of. And try to get to the fundamental questions of what causes some solar systems to form many planets, what causes Jupiter-mass planets