let's hear from our callers jane and she's in cresten iowa on with astronaut leyland melvin. >> hey, leyland i was just going to ask about -- girl from iowa that astronaut that's been up there for 665 days what do you think about that? >> so peggy who was this iowa i she was my commander in 2008 on the space station. she applied 13 times to become an astronaut rejected 12 times. so she's one of my heros she's a maker woman and she is -- she's one of the people that i -- that i hold up my katherine johnson as a hero amazing person. and i love her to death. peggy featured who is or o was katherine johnson. >> katherine johnson is 99-year-old mathematician calculated the trajectory to get john glenn orbiting the planet. and she was a hid opinion figure margo who is here -- talked about her writing the bock and actually margo is the daughter of bob lee who was the engineer who worked at nasa with me so like a family affair, and katherine like i said celebrating her birthday in population 800 but it tells you that no matter what zip code you're from no matter what you do with grit perseve