Exoplanets are by definition located outside our solar system. By measuring variations in the brightness of stars, we can deduce the presence and characteristics of any planets that accompany them. Given the large number of existing galaxies and the large number of stars they contain, the search for these exoplanets or extrasolar planets is endless. What are the biosignatures (indicators of life) that will reveal the presence of life on distant exoplanets?
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Discovery of solid buckyballs
Are we alone in the universe ?
Kepler 22b, a small exoplanet in the habitable zone of Kepler 22
Rama, extraterrestrial ship
Detection of exoplanets
Cheops, characteristics of exoplanets
Mini-Neptunes or gas dwarfs
Turn off the stars and see the exoplanets
Discovery of 6 Earth-sized planets
Four or five stars are born every year
JWST, the end of the dark ages
Hundreds of billions of planets
Protoplanet around the star HD100546
Two new planetary systems
The habitable zone of the Kepler-186 system
Billions of floating planets
Kepler space telescope in search of life
Liquid water, accelerator of chemical reactions
55 Cancri e, the diamond planet
Ashen light, the proofs of life
Number of candidate and confirmed exoplanets
Trappist or the harmony of the cosmos