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This week's Live QA was just me, no guest. Which gave us lots of time to get into your questions. We talked about photonic propulsion systems, the future of small rockets and whether space elevators will work better on the Moon or Mars.

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","title":"Episode 478: Open Space 22: Photonic Propusion, Canada in Space, Big or Small Rockets, and More...","added":1793130137,"published":1547582400,"attachments":[{"position":0,"id":"490d4ecf-2a62-4e0d-adb4-1e593a7a638c","sha256":"80e7cfa5858dcab498a7beba7ae09dcd5b5accf8e2eb5fd5e6c3e0673b8f7142","kind":"image","mimeType":"image/jpeg","width":null,"height":null,"durationMs":null,"bytes":1366748,"storageKey":"80e7cfa5858dcab498a7beba7ae09dcd5b5accf8e2eb5fd5e6c3e0673b8f7142","variants":[{"name":"original.jpg","bytes":1366748}],"originalFilename":"1.jpg"},{"position":1,"id":"da708167-806f-407d-b7b9-a1d01d7aca63","sha256":"1388c86fddde834863271e7ee5d4b8f0542607b65c83e718194ec7c559a8c26a","kind":"audio","mimeType":"audio/mpeg","width":null,"height":null,"durationMs":null,"bytes":58616033,"storageKey":"1388c86fddde834863271e7ee5d4b8f0542607b65c83e718194ec7c559a8c26a","variants":[{"name":"original.mp3","bytes":58616033}],"originalFilename":"1.mp3"}],"links":[],"tags":[],"comments":[],"prev":{"id":"126294455"},"next":{"id":"126294454"},"creator":{"name":"universetoday","displayName":"Fraser Cain"},"linked":[],"revisions":[]}