> ## Content Index
> Fetch the complete content index at: https://www.cascadepbs.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# The Final Barrier to (Nearly) Infinite Energy
- URL: https://www.cascadepbs.org/show/pbs-space-time/episode/the-final-barrier-to-nearly-infinite-energy-1ipanm/
- Published: 2025-02-18T16:46:02.000Z
- Updated: 2025-08-21T13:47:24.000Z
- Description: Why are billions suddenly being pumped into fusion startups?
- Author: Cascade PBS Staff
- Tags: PBS Space Time, Season 10, Episode 34, #ZZZ_Episode_9a2164e4-0b1a-497b-889e-00d8365585a2, #episode, #ZZZ_Show_ae70f836-13b6-4c9d-b61f-99f7b8bc29eb, #v1.16

One of the final challenges is deciding on the physical vessel to contain our mini artificial stars--and we have some pretty sci-fi options that are nearly ready to go.