LHS 1140 b is an exoplanet orbiting LHS 1140, a small, dim red dwarf about 40 light-years away in the constellation Cetus. It was discovered with the MEarth-South array of telescopes in Chile by detecting the dip in the star's light when the planet passed in front of it. It is a super-Earth, about one and two thirds as wide as Earth and several times heavier, which implies a high density. It orbits in the habitable zone, in a period of about 25 days, which makes it a promising target for studying atmospheres of rocky worlds. Observations with the James Webb Space Telescope have suggested that it may be a water-rich world, possibly with an ocean beneath a thin atmosphere.
Before and after
- 3 April 20172017 Saint Petersburg Metro attack
- 7 April 20172017 Shayrat missile strike
- 7 April 20172017 Stockholm attack
- 16 April 2017Turkish constitutional referendum, 2017
- 20 April 2017Discovery of LHS 1140 b
- 23 April 20172017 French presidential election
- from 2 May 2017 to 3 December 2021Premiere of Money Heist
- from 17 May 2017 to 22 March 20192017-2019 Special Counsel investigation
- 22 May 2017Manchester Arena bombing
More in Universe & space
- 16 February 1948Discovery of Miranda
- 4 March 1979Discovery of Metis
- 24 April 1990Launch of Hubble Space Telescope
- 1998Supernovae show that cosmic expansion is accelerating
- 10 April 2019The first image of a black hole
- 25 December 2021Launch of James Webb Space Telescope
The era
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