In 2022, Marsh was a visiting astronomer at the
European Southern Observatory (ESO). On 14 September, Marsh arrived with a
PhD student from the
University of Warwick at the ESO
La Silla Observatory for a 4-day observing visit. On 16 September, Marsh disappeared during either a hike or observing run at the La Silla. The search for Marsh was extended when his
mobile phone and various articles of clothing were found in the
Atacama Desert. Marsh was found dressed only from the waist down.
Inquest A
coroner's inquest into the nature of Marsh's death is due to take place on 27 March 2026 at
Warwickshire County Council. ==Legacy==