[Q&A] New Space Race, Dyson Spheres in Cosmic Voids, Protection from Solar Storms

Can dark energy be just empty space and nothing else? Is there a new space race going on? Why is NASA so slow with its Moon plans? Is there an upper limit for a star? Answering all these questions and more in this week's Q&A. 🦄 Support us on Patreon: https://patreon.com/universetoday 📚 Suggest books in the book club: https://www.goodreads.com/group/show/1198440-universe-today-book-club 00:00 Start 01:07 [Andoria] Is dark energy just empty space? 06:29 [Vulcan] Canadian accent 08:48 [Risa] What if a nebula collapsed back on its central neutron star? 12:11 [Aeturen] Why not use a satellite on a cycler orbit for high-bandwidth data transfer? 16:25 [Vendikar] Is a new space race on? 21:20 [Remus] How can NASA be so slow? 23:57 [Janus] Can space voids actually be Dyson spheres? 26:25 [Cait] What's the upper limit of star mass? 28:42 [Betazed] How can we protect against solar flares? 32:14 [Cheleb] Controversial topics among science discoveries 36:46 [Nimbus] What is the latest news about life on Europa? 📺 VIDEO VERSION https://youtu.be/D6y0xNGmDUc 📰 EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe. It's FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Astronomy Cast: http://www.astronomycast.com/ 🤳 OTHER SOCIAL MEDIA Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0)