The Earth is the only planet in the Solar System where liquid water is present on the surface, a condition that seems necessary for the development of life. Its sisters Venus and Mars are extremely different. Why did these three planets, born under fairly comparable conditions, evolve to the conditions we observe today? Understanding the physical or chemical factors that are at the origin of such divergent evolutions is a first step in an approach to the problem of the origin of life on Earth.
Understanding how diverse planet systems were formed and how they evolved are challenges that hundreds of researchers are working on. Does any of these planets harbor life?We do not yet have an answer, but the new means of observation that astronomers have and will soon have at their disposal are so powerful that they could give a first answer soon
This volume offers an accessible journey through the Universe in search of water. The author shows how scientists detect water, from the nearest planets to the furthest galaxies. Coverage includes the role played by water in studies of habitable exoplanets.
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