These people became heroes to me as a young kid in their passing. They were willing to push to expand the edges of human knowledge, and tragically lost their lives in pursuit of that goal. The Challenger disaster 30 years ago cemented an important aspect of my personality. With some negative personal experiences and the still looming threat of nuclear destruction from the U.S.S.R., it all helped to plant the seed of my peaceful, and knowledge seeking ways. Ever since January 28th, 1986, I've looked up to space for inspiration due to the brave sacrifice these astronauts ended up making.

How did Challenger, Apollo 1, or Columbia impact you?

http://www.nasa.gov/externalflash/DOR2016/index.html