# Ancient Martian microbes left behind a chemical "fingerprint" (with Dr. Katie Stack Morgan) Page: https://stenobird.com/podcast/looking-up-176431/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan Text version: https://stenobird.com/podcast/looking-up-176431/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan.md Podcast: [Looking Up](https://stenobird.com/podcast/looking-up-176431) Published: 2026-04-10T15:07:43+00:00 Episode link: https://www.wvxu.org/podcast/looking-up/2026-04-10/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan Audio file: https://cpr-od.streamguys1.com/Podcasts/20260410110408-AncientMartianmicrobesleftbehindachemicalfingerprintMixdown1.mp3?show=lookingup&srcid=wvxu-website Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/looking-up-176431/episodes/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan Duration seconds: 1135 ## Resource Last fall, NASA announced that it found something incredible in a rock on Mars. A core sample obtained by the Mars Perseverance rover discovered a potential biosignature. In other words, a potential sign of ancient life on Mars. Dean Regas chats with Kathryn Stack Morgan, Perseverance project scientist at the Jet Propulsion Laboratory, about this chemical "fingerprint." ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/looking-up-176431/episodes/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/looking-up-176431/ancient-martian-microbes-left-behind-a-chemical-fingerprint-with-dr-katie-stack-morgan.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.