Dry ice detected in a planetary nebula for the first time
Why it matters: It shows how life‑building molecules can endure stellar death, informing long‑term space resource prospects.
- James Webb Space Telescope captured high‑resolution infrared spectra that revealed CO₂ ice signatures in NGC 6302 (per the arXiv paper).
- International astronomy team led the analysis, confirming the ice’s composition and location within the nebula’s dense torus.
- Astrochemical models now need to account for solid carbon‑dioxide surviving stellar eruptions, which could revise estimates of organic‑rich material available for future planetary systems.
Using JWST, astronomers have identified dry‑ice (CO₂) grains inside the chaotic planetary nebula NGC 6302, marking the first ever detection of solid carbon‑dioxide in such an environment. The find reshapes our picture of chemistry in dying stars and hints at how complex can survive the violent end‑of‑life phases of solar‑type systems.
