HAVE YALL EVER WOUNDERED?

have y'all ever woundered whats beyound this world?

i know, i know, this might be a stupid question because some of yall will be saying "Uhh, space" but what if its not just space what if there is more? my little brother told me yesterday that they found another planet that had water, and oxygen, so then they (people) could live there too. and then on youtube there is a person named buzz aldrin people claim that he said "i have never been to space before even though you seen me on tv it wanst me" let me know what yall think.