Diffusion of CH4 in amorphous solid water Belén Maté, Stéphanie Cazaux, Miguel Ángel Satorre, Germán Molpeceres, Juan Ortigoso, Carlos Millán and Carmina Santonja A&A, 643 (2020) A163 Published online: 18 November 2020 DOI: 10.1051/0004-6361/202038705