By the end of 2011 astronomers had confirmed more than 500 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 2011.
Before and after
- 2011Release of Minecraft
- 2011Construction of Juventus Stadium
- 2011Discovery of Gliese 667 Cc
- 2011Video Games
- 2011Known exoplanets pass 500
- 2011Child mortality falls below 5% worldwide
- 15 January 20112011 South Sudanese independence referendum
- 15 January 2011Construction of Rams Park
- from 25 January 2011 to 11 February 20112011 Egyptian revolution
More in Universe & space
- 16 February 1948Discovery of Miranda
- 5 September 1977Launch of Voyager 1
- 4 March 1979Discovery of Metis
- 5 March 1979Discovery of Thebe
- 8 July 1979Discovery of Adrastea
- 16 June 1989Discovery of Proteus
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.