By the end of 2003 astronomers had confirmed more than 100 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 2003.
Before and after
- 2003Release of Virtual International Authority File
- 2003Introduction of East Timor centavo coins
- 2003Release of Inkscape
- 2003Publication of Harry Potter and the Order of the Phoenix
- 2003Known exoplanets pass 100
- 3 January 2003Birth of Greta Thunberg
- 7 January 2003Release of Safari
- 16 January 2003Launch of STS-107
- 1 February 2003Space Shuttle Columbia disaster
More in Universe & space
- 4 October 1957Launch of Sputnik 1
- 22 October 1969Discovery of 67P/Churyumov–Gerasimenko
- 14 September 1974Discovery of Leda
- 28 July 1989Discovery of Galatea
- 15 May 2005Discovery of Hydra
- 19 January 2006Launch of New Horizons
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.