Seventh Graders Go to Roper Mountain

I went with the seventh graders on a field trip to Roper Mountain Science Center on January 30, 2008. We went to go see Cowboy Astronomy,and Weird Science.During cowboy astronomy we saw lots of stars and other space deligths.We also got to ride the Cosmic Rollercoaster.Sometimes I wonder how did they make all of those scientific invintions like the planetarium? Why did they do it? When did they do it? How did they do it? How will this effect modren science today? Only time can tell.