Astronomers discover the "long-lost twin" of our Sun (and there may well be life)

<p class = "web-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Astronomers have found what they believe to be a "twin" or our sun – a "solar brother" who formed in the same group as our mother star about 4.6 billion years ago. "data-reactid =" 22 "> Astronomers have discovered what they thought was a" twin "or our sun – a" solar brother "who formed in the same group our mother star about 4.6 billion years ago.

<p class = "canvas-atom-canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The stars of the cluster have dissolved and scattered in our galaxyThe researchers explain that it is extremely difficult to find them. "data-reactid =" 23 "> The stars of the cluster have dissolved and scattered in our galaxywhich makes them extremely difficult to find, say the researchers.

Researcher Vardan Adibekyan from the University of Porto said: "Since there is not much information about the Sun's past, studying these stars can help us understand where the galaxy is and under what conditions. the sun has formed. "

The researchers analyzed data from hundreds of thousands of stars – in search of stars, "with the chemical composition that best fits the composition of the Sun".

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "TO BE FOLLOWED: An Argentine submarine found in the Atlantic one year after his disappearance with 44 crew members on board
TO KNOW: A woman claims that the airport valet drove her car 500 km and then gave her a parking ticket"data-reactid =" 26 ">TO BE FOLLOWED: An Argentine submarine found in the Atlantic one year after his disappearance with 44 crew members on board
TO KNOW: A woman claims that the airport valet drove her car 500 km and then gave her a parking ticket

They found one – HD 186302 – but it's not just a solar brother, it's a twin.

This G3 main sequence star is not only a solar brother by age and chemical composition, but also a solar twin.

Solar brothers and sisters could also be good candidates for the search for life because it is possible that life was transported between planets around the stars of the solar cluster. The transfer of life between exoplanetary systems is called interstellar lithopanspermia.

Adibekyan explains: "Some theoretical calculations show that there is a significant probability that life will spread from the Earth to other planets or exoplanetary systems during the period of late intensive bombardment.

"If we are lucky and our brother candidate has a planet and the planet is rocky, in the habitable zone, and finally if this planet was" contaminated "by the seeds of the Earth, then we have what we could dream – a 2.0 Earth, orbiting a 2.0 Sun. & # 39;