| Earth's Rotation Day | |  |
| National Static Electricity Day | | |
| National Create a Vacuum day | | |
| National Periodic Table Day | | |
| International Day of Women and Girls in Science | | |
| Darwin Day | | |
| Open Data Day | | |
| Alexander Graham Bell Day | | |
| World Contact Day | | |
| Nano Days | | |
| International Day of Human Space Flight | | |
| International Marconi Day | | |
| National DNA Day | | |
| Astronomy Day | | |
| International Asteroid Day | | |
| Space Exploration Day | | |
| Pluto Demoted Day | | |
| Astronomy Day | | |
| Ada Lovelace Day | | |
| Spreadsheet Day | | |
| Aviation History Month | | |
| Carl Sagan Day | | |
| World Science Day for Peace and Development | | |
| Mathematics Day | | |
| Grav Mass Day | | |
