| 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 | |  |
| National DNA Day | |  |
| International Marconi 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 | |  |