Chicxulub impact evidence: iridium, ejecta, and the crater

A 5-beat faceless video outline for “Chicxulub impact evidence: iridium, ejecta, and the crater” in the Dinosaurs and prehistoric life niche, derived from caption timing of 2 reference videos.

Angles

• Cold-open on the concrete hook from the primary reference — The Why Files leads with a scene, not a definition dump
• Make the mechanism explicit with one visual beat: So once the impact. Particles had evaporated from the atmosphere, the CO2 remained, creati…
• Contrast or scale-up using the second reference (BBC Earth Science): you see there's an enormous number of them. The landscape is completely freckled. But then…
• Close on what the viewer can check themselves; original narration only — do not copy reference wording

Beat-by-beat structure

1. Hook (0:00–0:30): open on the puzzle of 'Chicxulub impact evidence' in one image.
2. Setup (0:30–2:00): define the key terms in plain words; borrow structure from The Why Files, not lines.
3. Mechanism (2:00–5:00): walk the cause-and-effect with one diagram; cite the evidence beat (So once the impact. Particles had evaporated from the atmosphere, the …).
4. Contrast (5:00–7:00): show the common myth or the second case from BBC Earth Science.
5. Recap card: three takeaways + one 'check this yourself' action. Original narration only.

Reference videos

• Why The Dinosaurs Died | The Chicxulub Asteroid Impact xrbkQsEP7zY
• What Exactly Killed The Dinosaurs? | Earth | BBC Earth Science DGu6ZPyKyJ0

Method

yt-dlp VTT captions (manual/uploader only) → timed beat heuristics → editorial topic synthesis (no ASR). Structure only; write original narration.