Heat shields are one of the trickiest problems left to solve before we can have truly reusable spacecraft. But can a sweating heat shield be a solution? https://www.patreon.com/universetoday🟣 Guest: Dr. Hassan Saad Iftihttps://nal.tamu.edu/📜 Could Sweating Spacecraft Make Re-Entry Easier? https://www.universetoday.com/articles/could-sweating-spacecraft-make-re-entry-easier00:00 Intro01:40 Challenges of reentry12:00 Sweating spacecraft31:05 Which gas to use38:49 Metal 3D-printing45:51 Current obsessions50:41 Final thoughts📺 VIDEO VERSIONhttps://youtu.be/04rSPGwMLlM📰 GUIDE TO SPACE NewsletterNo ads. Subscribe for FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Astronomy Cast: http://www.astronomycast.com/📩 CONTACT FRASER[email protected]⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)