Flammable Titan, Jupiter Gravitational Lens, Max Photon Energy | Q&A 352

What's the highest energy a photon can have? Is Titan just a huge fire hazard floating in space? How do they measure the masses of planets with just satellites? And in Q&A plus, what realistic scifi is worth watching? 🔴 [Q&A+] No ads. Bonus question. For FREE https://www.patreon.com/universetoday 00:00 Start 00:00 [Chris Nelsynels] Realistic scifi recommendations 00:26 [Marz Chart] Is oxygen flammable on Titan? 00:46 [FPLMikkel] Ability to light fires as a Great Filter 01:44 [darthex0] Are stars burning after all? 02:01 [Francois Miron] Jupiter gravitational lens 03:08 [Michael McConnell] Measuring gravity with satellites 05:42 [Colin Houseworth] Energy limit for high energy photons 06:57 [Encodedpr] Trip to a Moon base 07:57 [Annie Alexander] For All Mankind 📺 VIDEO VERSION https://youtu.be/w3Fx1hEX0ws 📰 GUIDE TO SPACE Newsletter No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)