By the end of 2019 astronomers had confirmed more than 4,000 planets orbiting stars other than the Sun. The first were found only in the early 1990s; since then ground-based surveys and space telescopes such as Kepler and TESS, which watch for the tiny dip in a star's light as a planet passes in front of it, have turned exoplanets from a rarity into a routine discovery. Most stars in our galaxy are now thought to host planets. It took place in 2019.
Before and after
- 2019Junior Eurovision Song Contest 2019
- 2019Introduction of Diem
- 2019Japan–South Korea trade dispute
- 20192019 Amazon rainforest wildfires
- 2019Known exoplanets pass 4,000
- 3 January 2019Chang'e 4 lands on the far side of the Moon
- from 11 January 2019 to 21 September 2023Premiere of Sex Education
- from 11 January 2019 to 5 January 2023Venezuelan presidential crisis
- 25 January 2019Brumadinho dam disaster
More in Universe & space
- 22 October 1969Discovery of 67P/Churyumov–Gerasimenko
- 14 September 1974Discovery of Leda
- 24 May 1981Discovery of Larissa
- 22 August 1981Discovery of Pan
- 19 January 2006Launch of New Horizons
- 26 June 2012Discovery of Styx
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 21st century.