The Immune System Is Not a Miracle.

Doctor sam in melbourne has a question about the sun and itsthe our earth. He wants to know how much cloce to the sun end, or away from the sun, of the earth next da to be uninhabitabled by humans. We are well into the swing s answering your science questions here with doctor carl and i,. reckon, we just get straight into it. What do you reckon karl? Right on. Let's do it.