{"podcast":{"title":"Bedrock: Earth's Earliest History","slug":"bedrock-earth-s-earliest-history-4890111","podcast_index_feed_id":4890111,"rss_url":"https://feeds.captivate.fm/bedrock/","website_url":"https://www.bedrockpodcast.com","image_url":"https://artwork.captivate.fm/34ee9905-8cf0-4e69-bebf-e80566ab6988/ukXddByeTkHOe-lZVcWcWuBY.jpg","author":"Dylan Wilmeth","episode_count":77,"summary":"This podcast starts at the beginning of Earth's prehistory and works forward through time. Bedrock will explore the first 90% of Earth’s past, a time known as the Precambrian Era. Before humans, before dinosaurs… there was the Precambrian. The Earth was an incredibly alien world, but not a dead one. Along the way, you will build a mental toolkit to see the world like a geologist. You will never look at a mountain, the moon, or pond scum in quite the same way again. Welcome to Bedrock. For transcripts, visuals, and references, check out https://www.bedrockpodcast.com","last_synced_at":"2026-07-16T00:21:49.622247+00:00","page_url":"https://stenobird.com/podcast/bedrock-earth-s-earliest-history-4890111"},"episode":{"title":"43: Postcards From the Edge","slug":"43-postcards-from-the-edge","published_at":"2025-08-13T13:00:00+00:00","page_url":"https://stenobird.com/podcast/bedrock-earth-s-earliest-history-4890111/43-postcards-from-the-edge","show_page_url":"https://stenobird.com/podcast/bedrock-earth-s-earliest-history-4890111","url":"https://bedrock.captivate.fm/episode/43-postcards-from-the-edge","audio_url":"https://episodes.captivate.fm/episode/b55a1727-5c2e-4aa7-bfdd-5934679cc233.mp3","summary":"In 1971, two geologists traveled to the edge of Greenland's ice sheet. What they found were the oldest rocks known at the time, 3.8-3.7 billion years old. Shockingly, they were in decent condition, sparking a half-century of geology stories. Today we'll begin our tour of Isua, the final destination of Season 2. Along the way, we'll meet a Holocaust survivor who landed on top of the world, visit an iron mine surrounded by glaciers, and start to meet the highest-quality rocks of this season. Extra Credit: Eat some candy, some shrimp, or some Indian food. Donate to support the show- anything is appreciated!","meta_description":"In 1971, two geologists traveled to the edge of Greenland's ice sheet. What they found were the oldest rocks known at the time, 3.8-3.7 billion years old.…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1819,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/bedrock-earth-s-earliest-history-4890111/episodes/43-postcards-from-the-edge/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/bedrock-earth-s-earliest-history-4890111/43-postcards-from-the-edge.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}