Hello All, Please excuse my ignorance. I have a number of questions about the sun. Space is cold, yes, very very cold, close to absolute Zero. I have heard the argument that it is solar radiation or through convection that the heat from the sun reaches us. However I still can't get my head around it. Given that it gets colder & colder the higher into the atmosphere you go, would it not be rational to conclude that it is in fact our atmosphere which is itself generating the heat by another means; i.e. converting the radiation from the sun into heat. If space is a vacuum, how does the sun burn? Is it not possible that, although emitting radiation, it could also be dark, our atmosphere also converting the suns energy to light. Pictures from space aside, which could be doctored, are we being lied to. Is the sun really cold & black; if not then why not; & why is this impossible?