| 2017 | Nov 30 | Thu |
| 2018 | Nov 29 | Thu |
| 2019 | Nov 6 | Wed |
| 2020 | Nov 4 | Wed |
| 2021 | Nov 10 | Wed |
| 2022 | Nov 22 | Tue |
Cosmic rays surround people constantly, but are invisible and unnoticed. Each year, a day is declared dedicated to raising awareness of this natural phenomenon from outer space
