254KiB, 1280x905, 06 WT Diagram - low-res desktop -1280x905.jpg View SameGoogleiqdbSauceNAO stellar evolution Anonymous Fri 10 Dec 20:51:20 2021 No.13947823 ViewReplyOriginalReport Quoted By: >>13947827 >>13948085 >>13948129 We don't know how planets formed. We have no idea why they spin or why they have giant iron cores. We also don't know why they are all so different. ????????