NASA fieldtrip with @Cmdr_Hadfield

Twitter diary of Kate Lunau’s expedition to Johnson Space Center

<p>Canadian Space Agency astronaut Chris Hadfield speaks during a news briefing at NASA&#8217;s Johnson Space Center Thursday, Sept. 13, 2012, in Houston. Hadfield will be the first Canadian to command the International Space Station. (AP Photo/Pat Sullivan)</p>

Canadian Space Agency astronaut Chris Hadfield speaks during a news briefing at NASA’s Johnson Space Center Thursday, Sept. 13, 2012, in Houston. Hadfield will be the first Canadian to command the International Space Station. (AP Photo/Pat Sullivan)