This week's video explores the tobacco plant, focusing on Nicotiana rustica, also known as Aztec tobacco or strong tobacco.

Highly active sunspot AR3664 grew tremendously in this three day time-lapse. Credit: Space.com | footage courtesy: NASA / SDO ...

It just goes to show how much these cuties change in 12 short months, and we don't notice until we look back. Curly's ...