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Astronomers discover first evidence of tectonic plates on an exoplanet


Researchers at the Tobias Meier Center for Space and Habitability (CSH) at the University of Bern, Switzerland, believe they have found the first evidence of tectonic plate activity on an exoplanet.
Discovered in 2019, LHS 3844b it is 45 light years from us and is a mostly rocky planet, slightly larger than Earth. Scientists believe that it does not have an atmosphere, which makes it easier to observe its surface.
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Its orbit is so close to its star that it has synchronized rotation, that is, always shows the same side to her. With this, half of the planet is in an eternal day , with a surface temperature that can exceed 800 ºC, and the other half in an eternal night, with a temperature of -250 ºC. ....

Dan Bower , Bern University Of Thibaut Roger , Tobias Meier Center , University Of Bern , டான் போவர் , பெர்ன் பல்கலைக்கழகம் ஆஃப் திபொத் ரோஜர் , டோபியாஸ் மையர் மையம் , பல்கலைக்கழகம் ஆஃப் பெர்ன் ,

Astronomers Have Found The First Evidence For Tectonic Activity on an Exoplanet


Astronomers Have Found The First Evidence For Tectonic Activity on an Exoplanet
6 MARCH 2021
You may not be all that familiar with planet LHS 3844b, but it now has its own particular distinction: It s the first planet outside of our Solar System where astronomers think they might have evidence of tectonic activity.
 
That evidence is a set of advanced simulations based on observations of the rocky planet, which is slightly larger than Earth. Importantly for this particular piece of research, it doesn t look as though the exoplanet has an atmosphere.
That leaves half of LHS 3844b permanently exposed to its sun and could mean temperatures of up to roughly 800 degrees Celsius (1,472 degrees Fahrenheit) on the daytime side, and about minus 250 degrees Celsius (minus 418 degrees Fahrenheit) on the night-time side. ....

United States , Dan Bower , Tobias Meier , University Of Bern , Solar System , Astrophysical Journal , Amp Quot , ஒன்றுபட்டது மாநிலங்களில் , டான் போவர் , டோபியாஸ் மையர் , பல்கலைக்கழகம் ஆஃப் பெர்ன் , சூரிய அமைப்பு , வானியற்பியல் இதழ் , வெப்ப நிலை ,

Volcanoes might light up the night sky of this planet


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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..
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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. ....

United States , Johannes Geiss , Dan Bower , Tobias Meier , Buzz Aldrin , National Center , Swiss National Fund , University Of Oxford , Planetary Sciences , Physics Institute Of The University Bern , University Of Geneva , University Of Bern , Department Of Space Research , University Of Bern The National Center , Astrophysical Journal , Bernese Solar Wind Composition , Physics Institute , Space Research , Geophysics Gravity , Space Planetary Science , Planets Moons , ஒன்றுபட்டது மாநிலங்களில் , டான் போவர் , டோபியாஸ் மையர் , புழ்ழ் ஆல்ட்ரின் , தேசிய மையம் ,