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Heavy Stuff, Sir The Magistrate Apr 2014 #1
It's Ma'am PADemD Apr 2014 #2
And on a long enough timeline, it'll happen again. AtheistCrusader Apr 2014 #3
I've often wondered why all the fossil fuels are so concentrated dickthegrouch Apr 2014 #4
This site might provide some answers. Enthusiast Apr 2014 #19
sooner or later MrNJ Apr 2014 #5
I read somewhere in a science article that after that huge crater impact on the moon roguevalley Apr 2014 #6
I wonder if this caused the tilt in the axis. Spitfire of ATJ Apr 2014 #7
self delete Codeine Apr 2014 #12
It wasn't a Nazi thing. Spitfire of ATJ Apr 2014 #14
I saw something about that in the "Big History" series on the History Channel recently. calimary Apr 2014 #17
Craters on Moon from same Late Heavy Bombardment period. ErikJ Apr 2014 #8
I love this vid on it.... Spitfire of ATJ Apr 2014 #13
Fascinating lark Apr 2014 #9
Cool stuff greytdemocrat Apr 2014 #10
L! H! B! MisterP Apr 2014 #11
"The Earth Shook For A Half Hour" Motown_Johnny Apr 2014 #15
ROFL!!!!!!! calimary Apr 2014 #18
Norm Sleep is a pretty cool name. cyberswede Apr 2014 #16
Latest Discussions»General Discussion»The Earth Shook for a Hal...»Reply #1