Chapman Medal
The Chapman Medal is an award of the Royal Astronomical Society, given for "investigations of outstanding merit in the science of the Sun, space and planetary environments or solar-terrestrial physics". It is named after Sydney Chapman, a British geophysicist who worked on solar-terrestrial physics and aeronomy. The medal was first awarded in 1973, initially on a triennial basis. From 2004 to 2012 it was awarded biennially, and since 2012 has been annual.
Medallists
Source:| Year | Winner | Source |
| 2026 | Mathew Owens | |
| 2025 | Nigel Meredith | |
| 2024 | Valery Nakariakov | |
| 2023 | Nicholas Achilleos | |
| 2022 | Sandra Chapman | |
| 2021 | Ineke De Moortel | |
| 2020 | Cathryn Mitchell | |
| 2019 | Tom Stallard | |
| 2018 | Emma Bunce | |
| 2017 | Mervyn Freeman | |
| 2016 | Philippa Browning | |
| 2015 | Alan Hood | |
| 2014 | Louise Harra | |
| 2013 | Stephen Milan | |
| 2012 | Andrew Fazakerley | |
| 2010 | Bernard Roberts | |
| 2008 | André Balogh | |
| 2006 | Steven Jay Schwartz | |
| 2004 | Richard Harrison | |
| 2001 | Jeremy Bloxham | |
| 1998 | Mike Lockwood | |
| 1994 | Ian Axford | |
| 1991 | Stan Cowley | |
| 1988 | D. Ian Gough | |
| 1985 | Peter Goldreich | |
| 1982 | Jim Dungey | |
| 1979 | Eugene Parker | |
| 1976 | Syun-Ichi Akasofu | |
| 1973 | Drummond Matthews and Frederick Vine |