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Do aliens see us? Researchers answer

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To date, more than 4,500 exoplanets have been discovered, including what are believed to be “characteristics of life”. A new study suggests that some of these planets can “see also”.

World-varieties

 

The research, published in the scientific journal of astronomy “Monthly Notices of the Royal Astronomical Society”, identified as many as 1004 sun-like stars, which may contain in their orbit Earth-like planets.

 

A statement accompanying the research stated that these stellar systems have a”direct line of sight to observe Earth’s biological traits from afar”.

 

Lisa kaltniger, professor of astronomy and director of the Carl Sagan Institute at us Cornell University, said: “How can these planets, where there might be life, find Earth as a transient planet?”

 

“If there really was life on these planets, observers there would be able to see signs of the biosphere in the Earth’s atmosphere, like what happened in the Pale Blue Dot image,”she added.

 

The ” faint blue dot “is a famous photograph of Planet Earth taken by the Voyager 1 space probe on February 14, 1990, from a record distance of about 6 billion kilometers from Earth.

 

The researchers noted that the results of the recent study “while thought-provoking, they are limited.”

 

The study’s co-author, Joshua Pepper, said a “very small fraction” of exoplanets could line up properly so those on earth could see their transit.

 

“But all the 1,004 stars identified in the paper can see us,”he added.

 

It is possible that life on these planets may have existed for billions of years, given the properties they are believed to possess, Fox News said, noting that the available data “needs further study”.

 

A number of researchers occasionally promote theories and ideas that suggest the existence of other objects in outer space and stress the need for further research.

 

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