Oxygen-bearing organic molecules in comet 67P’s dusty coma: First evidence for abundant heterocyclesN. Hänni, K. Altwegg, D. Baklouti, M. Combi, S. A. Fuselier, J. De Keyser, D. R. Müller, M. Rubin and S. F. WampflerA&A, 678 (2023) A22DOI: https://doi.org/10.1051/0004-6361/202347059