Thanks for that. I gave it a quick once over. I will read it more critically later.
Fred Hoyle should have got the Nobel Prize in my opinion for his elucidation of nuclear sythesis in stars just before I was born! It was his later 'wacky' ideas that made the main stream scientists ignore him.
I am still in awe of the contents of this image where the Vela SN remnant is in front of an very much older remnant called the Gum Nebula.
Large image 4MB
http://d1355990.i49.quadrahosting.co...VELcol+nbM.jpg
If you want a near full resolution image here is an 18Mb version
http://d1355990.i49.quadrahosting.co...ELcol+nbXL.jpg
Bert