<a href="https://en.wikipedia.org/wiki/Neil_deGrasse_Tyson" class="extiw" title="w:Neil deGrasse Tyson">Neil deGrasse Tyson</a> speaks on a NASA video in 2014. Original NASA video title: Station Astronauts Do Experiment for 'Cosmos'. March 9, 2014.
<a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=36keC5eDUWk">NASA</a>
2014-03-09
<a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=36keC5eDUWk">NASA.gov video</a>