. >> now, nasa administer charles bolden speaks at a mars exploration some of that happened earlier this month. in his remarks, mr. bolton talks about how a manned mission to mars would be a significant step forward in human space exploration. and what congress and the president can do to help achieve that. this is 30 minutes. >> thank you all very much, and i'm excited about getting the word from the next three days. i think you all will have a tremendous time just browsing through the agenda. i want to thank explore mars, inc. and gw space policy institute for allowing me an opportunity to kind of help kick this somewhat off. and i want to thank you all for bring the summit together. interest in sending humans to mars as artemis just mentioned, i think has never been higher. both from our international counterparts and from a growing number of american commercial space countries, many of whom are also represented at this conference. and, of course, president obama has challenged us to send humans that are either 2030s. for me, it's really interesting because i go back to some of you we