By the end of 2022 astronomers had confirmed more than 5,000 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 2022.
Before and after
- 24 November 2021Launch of Double Asteroid Redirection Test
- 25 December 2021Launch of James Webb Space Telescope
- from 2022 to 2023Battle of Marinka
- 2022Russian strikes against Ukrainian infrastructure
- 2022Known exoplanets pass 5,000
- from 2 January 2022 to 11 January 20222022 Kazakh unrest
- from 21 February 2022 to 17 February 2024Battle of Avdiivka
- 24 February 2022Full-scale Russo-Ukrainian war
- 24 February 2022Snake Island campaign
More in Universe & space
- 30 September 1975Discovery of Themisto
- 24 May 1981Discovery of Larissa
- 22 August 1981Discovery of Pan
- 20 January 1986Discovery of Ophelia
- 19 February 1986Launch of Mir
- 18 September 1989Discovery of Naiad
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.