- 2021 – Tokyo hosts the Olympic Games
- New test can detect COVID-19 within 45 minutes
- World's fastest supercomputer finds potential drug compounds for COVID-19
- First human clinical trial of COVID-19 vaccine
- New coronavirus test is 10 times faster
- Biological and artificial neurons linked up over the web
- Astronomers find exoplanet where it rains molten iron
- Amazon rainforest could be gone within a lifetime
- 2083 – V Sagittae becomes the brightest star in the night sky
- 2027 – The final Avatar movie is released
- 2030 – The entire ocean floor is mapped
- Half of world's sandy beaches could vanish by 2100
- Protein discovered in meteorite?
- 21% of Australia's forests burnt by fires
- First non-oxygen breathing animal discovered
- 2021 – First uncrewed maiden flight of NASA's Space Launch System (SLS)
- Freeman Dyson, 1923–2020