China has a plan to find an inhabited Earth!


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[EN VIDÉO] Proxima b, the closest exoplanet to us!
It is the only planet known to date orbiting Proxima Centauri, a star located in Alpha Centauri. This system is closest to our Solar System, “only” 4,244 light years from us.

This mission had already been discussed. But today, these are the Chinese scientists to the commands that evoke it. Who details it, too. Since they publish a white paper of approximately 115 pages explaining how they intend to go about finding a “Earth 2.0”. By relying on a new generation space observatory whose launch is scheduled for the end of 2026. The mission ” AND “ — for “Earth 2.0” – while baptizing him. Because the goal is there: to find a planet that could host life.

“The Earth-like habitable planets aroundstars Solar type, aka Earth 2.0, are probably the best places to look extraterrestrial life because of their environment physicistchemical and potentially biological similar to Earth “, the researchers explain. Hence the idea of ​​first identifying an Earth 2.0 before starting to search for traces of life.

At the basis of the project, seven telescopes which, like the James Webb Space Telescope from NASA, it will be “stationary” to Lagrange point L2 for four years. Six of them – each 30 centimeters in diameter – will be aimed at the same region of the sky as the space telescope Kepler has already observed. To find your way around faster. Around constellation of the Swan and that of the Lira. Specially designed to overcome the noise Kepler discovered around solar-like stars, they will follow transits fromexoplanets.

The seventh telescope of the ET mission will be directed towards the center of our Milky Way. With the aim of identifying the phenomena of gravitational microlenses that could in particular betray the presence of some wandering exoplanets. Planets that are no longer attached to a star. And indeed, particularly difficult to track down.

More than a dozen Terres 2.0 in sight

Because what the ET mission will be looking for are not just Earth-sized planets orbit around stars similar to ours Sun and at a distance close to what we know to our Planet, but simply all terrestrial-type planets. Even those whose orbits differ from that of our Earth and therefore the possible rocky planets vagrants.

Chinese researchers have already conducted some simulations. They announce that the ET mission should be able to detect some 29,000 new exoplanets. Among them, nearly 4,900 the size of our Earth. And, assuming the occurrence rate of rocky planets similar to ours is 10%, possibly between 10 and 20 Earth 2.0. Everything from 2030, therefore.

Once these Earths 2.0 have been identified, it will still be necessary to study their composition atmosphere and to determine if water can flow over their surface. Next, researchers will have to look for biomarkers – such as methane or oxygen – or technological signatures – like broadcasts Radio – which could indicate that life developed there.

The white paper published by the researchers in charge of the project also tells us that the ET mission will not stop there. It will also address tens of thousands of items in ours Solar systemof the Comets or some asteroids. As well as some of the oldest stars of ours Milky Way. To help better understand the evolution of ours galaxy.

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