Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

@article{Gillon2017SevenTT,
  title={Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1},
  author={Micha{\"e}l Gillon and Amaury H. M. J. Triaud and B-O. Demory and Emmanuel Jehin and Eric Agol and Katherine M. Deck and Susan M. Lederer and Julien de Wit and Artem Burdanov and James G. Ingalls and {\'E}meline Bolmont and J{\'e}r{\'e}my Leconte and Sean N. Raymond and Franck Selsis and Martin Turbet and Khalid Barkaoui and Adam J. Burgasser and Matthew R. Burleigh and Sean J. Carey and Aleksander Chaushev and C. M. Copperwheat and Laetitia Delrez and Catarina Silva Fernandes and Daniel L. Holdsworth and Enrico J. Kotze and Val{\'e}rie Van Grootel and Yaseen Almleaky and Zouhair Benkhaldoun and Pierre Magain and Didier Queloz},
  journal={Nature},
  year={2017},
  volume={542},
  pages={456 - 460}
}
One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star—named TRAPPIST-1—makes possible in-depth studies of their atmospheric properties with present… 
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SPECULOOS: Ultracool dwarf transit survey
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