I have in-laws who live in Waco, TX.  Also in Waco or more specifically, McGregor, Texas is the rocket development facilities of Space X.  My in-laws say that they regularly hear "rocket sounds".  That's cool!  Check out this unique video perspective of one of the Space X test launches.

According to the Space X website,

"Space X designs, manufactures and launches advanced rockets and spacecraft. The company was founded in 2002 to revolutionize space technology, with the ultimate goal of enabling people to live on other planets".