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11 лет до признания: «Все произошло случайно» Что скрывал доктор Земченков

11 лет до признания: «Все произошло случайно» Что скрывал доктор Земченков
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How the habitability of exoplanets is influenced by their rocks

 E-Mail IMAGE: Weathering of silicate rocks is part of the so-called carbon cycle that maintains a temperate climate on Earth over long periods of time. view more  Credit: © Universität Bern / University of Bern, Illustration: Jenny Leibundgut The conditions on Earth are ideal for life. Most places on our planet are neither too hot nor too cold and offer liquid water. These and other requirements for life, however, delicately depend on the right composition of the atmosphere. Too little or too much of certain gases - like carbon dioxide - and Earth could become a ball of ice or turn into a pressure cooker. When scientists look for potentially habitable planets, a key component is therefore their atmosphere.

Volcanoes might light up the night sky of this planet

 E-Mail IMAGE: This artist s illustration represents the possible interior dynamics of the super-Earth exoplanet LHS 3844b. The planet s interior properties and the strong stellar irradiation might lead to a hemispheric tectonic regime.. view more  Credit: © Universität Bern / University of Bern, Illustration: Thibaut Roger On Earth, plate tectonics is not only responsible for the rise of mountains and earthquakes. It is also an essential part of the cycle that brings material from the planet s interior to the surface and the atmosphere, and then transports it back beneath the Earth s crust. Tectonics thus has a vital influence on the conditions that ultimately make Earth habitable.

A pair of lonely planet-like objects born like stars

 E-Mail IMAGE: Artist s composition of the two brown dwarfs, in the foreground Oph 98B in purple, in the background Oph 98A in red. Oph 98A is the more massive and therefore more. view more  Credit: © University of Bern, Illustration: Thibaut Roger Star-forming processes sometimes create mysterious astronomical objects called brown dwarfs, which are smaller and colder than stars, and can have masses and temperatures down to those of exoplanets in the most extreme cases. Just like stars, brown dwarfs often wander alone through space, but can also be seen in binary systems, where two brown dwarfs orbit one another and travel together in the galaxy.

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