Our location in the Milky Way galaxy

Our planet is located in the disk of our galaxy, closer to the edge than the center. We are located between the Perseus and Sagittarius spiral arms of our galaxy, about 36 quadrillion miles from the W80H star region of the Perseus's arm.

Sources:
Carey, Bjorn. "Scientists Figure out Our Place in Milky Way." Msnbc.com. Msnbc Digital Network, 08 Dec. 2005. Web. 17 Oct. 2012. .
Image courtesy of NASA