What exactly is empty space
When I ask ai this same question and yt they both say it is not exactly empty and some thing about Quantum field But my question were little different is hard to explain to be honest I wanted to in context of about mass and atoms and etc and how it manage because it feel wierd (my be because it's 3am) I know other planet just can't expand and take empty space because of there safe and goal to minimise surface tention and it would rrequired a lot of energy to overcome there binding energy i think or my be i am wrong So can some one tell me if i wan to learm this stuff what should i read oe study And also what maths topics i should study i wwant to study Quantum physics (field part