More "Earths" In Our Galaxy?

With every day passing in this scientifically developed era, many new theories and thesis our entering our paramount shelves. Just due to the complicated inceptions of instruments and tools, we have been able of peeking into the exact celestial bodies that are moving around and constituting our galaxy, Milky Way.

In the March’s published reports from CNN, it was widely pointed out that there might be other “Earth-like” planets present in our galaxy. These planets have the possibility of being rich with life either primitive or modern. Although there is an equal possibility that these planets might have developed civilisations billions of years ago there is the same certainty that these might after such time period.

By the mere association between Earth and other resembling planets out there, it is actually intended that these planets may be approximately many times that of the size of Earth but still smaller than the various gas planets like Jupiter. Alan Boss, an Astronomer with the Carnegie Institution, besides stating the above estimation, also called out that if these planets have the presence of liquid water, then, there is an equal possibility of life on them.

But it isn’t quite necessary that they may be crowded by sprawling intelligent human beings or even dinosaurs, but there might be existence of some multi-cellular organisms or specifically a sort of primitive life like bacteria which already dominated our planet in the first 3 billion years of its existence.

Though the investigation took a more interesting turn when the researchers at University of Edinburgh at Scotland, made up a computer model to resemble Milky Way with billions of stars and planets. Using up this virtual model, they then studied the major evolution of life under various conditions.

These researches then concluded in the International Journal of Astrobiology, from 38,000 that have been formed, 361 intelligent civilizations have emerged. This explicit study has made clear the existence of an another possible living being in the galaxy and the certainty exhibited by the virtual graphics seems quite authentic but it also poses various questions like the ones associated with the discovery of exoplanets—that orbit sun-like stars located outside the solar system.