Who is that? I wanna help you answer this but I don’t know what it goes to
The basic concepts of socialism are as follows; the main idea is that people should live in an egalitarian society where everybody would contribute as much as he can and take as much as he needs, this would give us a society where everybody would be equally well off and nobody would have less. Everything would also be state owned - this has been a solution that happened in the past.
In my opinion, pure socialism cannot succeed but perhaps using some things from it could be very beneficial.
I know planets rotated around the sun, is definitely true. I'm not sure about the others.