Back 2021 год у гісторыі навукі Byelorussian 2021 in der Wissenschaft und Technik German 2021 en science French 2021 במדע HE 2021 a tudományban Hungarian 2021年の科学 Japanese Науката во 2021 година Macedonian Vitenskapsåret 2021 NB 2021 în știință Romanian 2021 год в науке Russian
| Years in science: | 2018 2019 2020 2021 2022 2023 2024 |
| Centuries: | 20th century · 21st century · 22nd century |
| Decades: | 1990s 2000s 2010s 2020s 2030s 2040s 2050s |
| Years: | 2018 2019 2020 2021 2022 2023 2024 |
| 2021 in science |
|---|
| Fields |
| Technology |
| Social sciences |
| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
| Other/related |
This is a list of several significant scientific events that occurred or were scheduled to occur in 2021.