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Exoplanet Kepler-186f

Artist's concept depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone - a range of distance from a star where liquid water might pool on the planet's surface. The discovery of Kepler-186f confirms that Earth-size planets exist in the habitable zones of other stars and signals a significant step closer to finding a world similar to Earth. The size of Kepler-186f is known to be less than ten percent larger than Earth, but its mass, composition and density are not known. Previous research suggests that a planet the size of Kepler-186f is likely to be rocky. Prior to this discovery, the "record holder" for the most "Earth-like" planet went to Kepler-62f, which is 40 percent larger than the size of Earth and orbits in its star's habitable zone. Kepler-186f orbits its star once every 130 days and receives one-third the energy that Earth does from the sun, placing it near the outer edge of the habitable zone.

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Titre: Exoplanet Kepler-186f

Légende: Voir la traduction automatique
Artist's concept depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone - a range of distance from a star where liquid water might pool on the planet's surface. The discovery of Kepler-186f confirms that Earth-size planets exist in the habitable zones of other stars and signals a significant step closer to finding a world similar to Earth. The size of Kepler-186f is known to be less than ten percent larger than Earth, but its mass, composition and density are not known. Previous research suggests that a planet the size of Kepler-186f is likely to be rocky. Prior to this discovery, the "record holder" for the most "Earth-like" planet went to Kepler-62f, which is 40 percent larger than the size of Earth and orbits in its star's habitable zone. Kepler-186f orbits its star once every 130 days and receives one-third the energy that Earth does from the sun, placing it near the outer edge of the habitable zone.

Crédit: Album / Science Source / NASA/Ames/SETI Institute/JPL-Caltech

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 4534 × 2550 px | 33.1 MB

Taille d'impression: 38.4 × 21.6 cm | 1785.0 × 1003.9 in (300 dpi)

Mots clés: 21E SIECLE • ANNEES 2010 • ASTRONOMIE • ASTRONOMIE: PLANETES • COSMOS • ILLUSTRATION • PLANETE • PLANÈTES • SCIENCE: ASTRONOMIE • XXIE SIECLE