<p>Rubik Sheth, project manager at NASA's Johnson Space Center in Texas, speaks to social media participants the in the agency's Kennedy Space Center Press Site auditorium. The briefing focused on the phase-change material heat exchanger, a device that could help maintain critical temperatures inside a space craft by freezing or thawing a material. 
Photo credit: NASA/Kim Shiflett
</p>
<b><a rel="nofollow" class="external text" href="http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html">NASA image use policy.</a></b>
<bdi><a href="https://www.wikidata.org/wiki/Q117448892" class="extiw" title="d:Q117448892"><span title="NASA photographer">Kim Shiflett</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasakennedy/28274130562/">KSC-20160717-PH_KLS01 CRS-9_0103</a>