Worldbuilding Wednesday - Inner Earth, Craters, & Killer Asteroids

Over on discovermagazine.com, learn "20 Things You Didn't Know About Inner Earth" here.

Also, on smithsonianmag.com, they ask "How Many Craters Are There On Earth?"  Find out here.

Finally, on sciencechannel.com, check out a new video on "Killer Asteroids" here.

Worldbuilding Wednesday on GRYMVALD.com
The nuts and bolts of Worldbuilding
for our tabletop RPGing.

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