And it all comes full circle for me.

Well, from the article I read it should not hit us for another century. So, we have some time. However, according to CNN, the government is tracking a lot of these things and are trying to keep an eye out.
Asteroid passes close to Earth(CNN) -- You had a close encounter with a 40-yard-wide asteroid this week, but the astronomer who first spotted the large rock said it's nothing to worry about.
An asteroid (inside circle) passed within 38,000 miles of Earth on Monday.
(please click link for full article - post was edited by Alpha Mike, in accordance with DMCA rules and regulations)