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In spite of our best efforts, the human race, the existence of intelligent extra-terrestrial life. We have, therefore, decided to cheat.
Astronomers from Cornell University have created what they call “a cosmic cheat sheet, as well as the nature of the color palette from the early days of the planet, in an attempt to make easier to find other planets that could potentially host life.
“In our quest to understand the planets, we can use the origin of the Earth and its biodiversity milestones in the history of the Rosetta stone,” said Jack O’malley-James, a research associate at Cornell university’s Carl Sagan Institute, in a statement.
In order to understand where they are in their own development, astronomers can use the Earth’s biological milestones are like a Rosetta stone. (Credit: Wendy Kenigsberg/Cornell Brand Communications
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The graph shows the four different colours for the variety of flora and fauna, and dark green, which means the land of the vegetation, the light green, which means the vines; gray is equivalent to lichen; and aqua, which are representative of the different cyanobacteria.
“If we find an exo-planet, and this study gives us a much wider scope to have a look at the time,” Lisa Kaltenegger, professor of astronomy and director of the Sagan Institute for the study of co-author, said. “We have to extend the period of time that we will be able to find the surface of the biota of the 500-million-year (widespread, land, vegetation) to approximately 1 million years ago, mosses, and a maximum of 2 or 3 billion years ago in cyanobacteria.”
The Earth is generally assumed to be approximately 4.7 billion years old using radioactive dating, which uses uranium to decay, according to NASA.
“If a stranger had been used for the colour to look as if our Earth-life, that is, the alien would look like very different colors in our planet’s history, going back billions of years to when different forms of life dominated earth,” Kaltenegger added.
O’malley added that if the scientists are able to look for biosignatures on Earth-like exo-planets’ in the history of our planet, it is thanks to his research, which he is, and Kaltenegger, have done so.
The study, which was published in the Astrophysical Journal.
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