{"id":4534,"slug":"xs-1-spaceplane","name":"XS-1 Spaceplane","type":"concept","created_at":"2026-08-08T23:20:13.298622+00:00","hidden":0,"aliases":[],"episodes":[{"id":"5c9f9c98-1710-4651-861a-08377f8e91e9","slug":"s2e18-sequencing-spectrum","subject":"s2e18: Sequencing; Spectrum","title":"Sequencing; Spectrum","publish_date":"2015-08-14T00:00:00+00:00","year":2015,"month":8,"season":2,"episode":18,"episode_label":"s02e18","canonical_url":"https://newsletter.danhon.com/archive/s2e18-sequencing-spectrum/","is_premium":0,"word_count":1134,"context":" … DARPA Funds Stage 2 of <mark>XS-1 Spaceplane</mark> Design Competition\n\n\n\n- Terahertz rays are cool and we might have figured out how to make them, also we get to … ","reading_minutes":6}]}