[astro-ph.GA] Acetylene (C2H2) is commonly observed in star-forming regions, young stellar objects, and the Solar System.
![Schematic illustration of the ablation scheme used at the MATRI2CES setup. The laser fires at 5 Hz while the substrate is moved downward by a motorized Y-translator, ensuring a fresh spot is probed with each shot. -- [astro-ph.GA]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/09/In-situ.png?resize=1200%2C720&ssl=1)
[astro-ph.GA] Acetylene (C2H2) is commonly observed in star-forming regions, young stellar objects, and the Solar System.