1 rich Libsyn https://www.libsyn.com 90 600 The 280th spacewalk is scheduled for June 30 with two astronauts,&amp;nbsp; Chris Williams and Jessica Meir will replace a joint that malfunctioned on May 27.&amp;nbsp; The spacewalk will be the second for William and the fifth for Meir. About Space Today http://www.aboutspace.today <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/41809515/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/content/203373495