I wanted to find out the difference between a supernova, and the energy it would take to blow up the Solar System. This guy: http://www.madsci.org/posts/archives/2001-11/1004909251.As.r.html Says it would take the equiv of 5.09x 10^37 Tons of TNT to blow up the Solar System Wikipedia says a Super Nova is 1x10^28 Tons of tnt. So the Super Nova would be much smaller. Then I did my own calcs ( all numbers are J ) I took the gravitational binding energy of the Sun 6.9 x 10^41 Then of the planets, For the planets I took earth's: binding energy of earth = 2 x 10^32 Multiplied it by 9 for each planet , and then doubled that number for a decent estimate: So : 36 x 10 ^32 so Binding energy of sun + 36 x 10^32 and I got 6.900000036 x 10^41 As the energy needed to destroy the SS by over coming the binding energy ( for this whole thing I am ignoring distance from the cause and such, assume they are all right near each other ) And the energy of a Supernova is 10^44 So with my way of doing things, and the others guys both contridict, Mine shows that a SN would be about 200x a Solar systems destruction. And the tnt Guy's seems to show a Supernova is MUCH less than a Solar System level explosion Thank you for the help!