Milky Way Hosts 100 Million Habitable Worlds, say Scientists
A group of astronomers has revealed that there are some 100 billion other places in the Milky Way that could have positive implications for life. A newly developed computation helped the researchers examine data from planets circling other stars in the universe. It could be possible to have planets that could host life, but nobody can yet confirm the certainty of such planets.
"This study does not indicate that complex life exists on that many planets. We're saying that there are planetary conditions that could support it. Origin of life questions are not addressed - only the conditions to support life", said a press release from the Cornell University.
The study of more than 1,000 planets allowed the researchers to look at factors like planet density, temperature, chemistry and distance from its central star and age. After deriving their results, the researchers created the Biological Complexity Index (BCI). This was aimed at determining how many planets in the Milky Way have the potential to offer life.
Calculations led the researchers to a conclusion that 2% of the planets have a BCI rating higher than Europa, a moon of Jupiter believed to have an ocean that may give birth to different form of life. Around 10 billion stars in the Milky Way galaxy and 100 million plausible planets are yielded by the BCI.
Complex life does not mean intelligent life but it does not deny the existence of it either. The researchers explained that organisms larger and more complex than microbes are likely to exist in a number of different forms there.
A group of international astronomers and astrobiologists from universities in Texas, Cornell, Puerto Rico and Berlin's Technical University compiled the report. They studies the 1,700 planets discovered so far by scientists in the Milky Way galaxy.
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