Where Did Marijuana Come From And How Did It Spread?

Until 2015, there was a ban on cannabis research, so there will be much more information available soon. But where did marijuana come from?

DNews Plus is built for enthusiastic science fans seeking out comprehensive conversations on the geeky topics they love. Host Trace Dominguez digs beyond the usual scope to deliver details, developments and opinions on advanced topics like AI, string theory and Mars exploration. DNews Plus is also offered as an audio podcast on iTunes.