Life under another Sun: From Science Fiction to Science

  title={Life under another Sun: From Science Fiction to Science},
  author={Micha{\"e}l Gillon},
  journal={European Review},
  pages={18 - 39}
  • M. Gillon
  • Published 2 October 2019
  • Physics, Geology, Art
  • European Review
Initiated in the sixteenth century, the Copernican revolution toppled our Earth from its theological pedestal, revealing it not to be the centre of everything but a planet among several others in orbit around one of the zillions of stars of our Universe. Already proposed by some philosophers at the dawn of this major paradigm shift, the existence of exoplanets, i.e. planets in orbit around stars other than our Sun, remained suspected but unconfirmed for centuries. It is only in the last decade… 


Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
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Four stages in the accretion of planetesimals are described. The initial stage is the condensation of dust particles from the gaseous solar nebula as it cools. These dust particles settle into a thin
Temporal Evolution of the High-energy Irradiation and Water Content of TRAPPIST-1 Exoplanets
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The discovery of planets around other stars is revolutionizing our notions of planet formation and is poised to do the same for planetary climate. Studying transiting planets is complementary to
A planetary system around the millisecond pulsar PSR1257 + 12
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Direct imaging of exoplanets
  • A. Lagrange
  • Physics, Geology
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2014
The results of direct imaging surveys obtained so far are presented, and what they already tell us about giant planet (GP) formation and evolution and the progress expected in direct imaging in the near future, thanks in particular to forthcoming planet imagers on 8–10 m class telescopes.
One or more bound planets per Milky Way star from microlensing observations
It is concluded that stars are orbited by planets as a rule, rather than the exception, and that of stars host Jupiter-mass planets 0.5–10 au (Sun–Earth distance) from their stars.
The nature of the TRAPPIST-1 exoplanets.
Context. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation and evolution of
Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST
Nine transiting Earth-sized planets have recently been discovered around nearby late M dwarfs, including the TRAPPIST-1 planets and two planets discovered by the MEarth survey, GJ 1132b and LHS