Most Stars In The Milky Way Have Habitable Planets; New Study Suggests
Over the past few weeks, we’ve came across many new findings associated to the Milky Way Galaxy — its size, dwarf galaxies around it, and so on. Now, a new research, again with Milky Way as its focal point, has found that most of the planets revolving around Galaxy are in the habitable zone. This could mean that likelihood of alien life is greater than what is commonly believed.
Probability of life on any planet directly depends on its position, i-e it has to exist in habitable zone to host life in any way. This zone is determined by planet’s distance from its star. If it exists too close to the star, it will be too hot and vice versa. This temperature variance affects the liquid water which is one of the indispensable need for living. Too hot planet will burn the water, thus no life. Too cold planet will freeze the water, thus no life again.
The planets which reside in the habitable zone are called “Godilocks planets.” According to the findings of the new study, most of the stars have these planets which are thought to be imperative for alien life. To be precise, the study claims, billions of the stars in the Milky Way Galaxy own one to three planets which are habitable.
The research team consisted of astronomers from the Australian National University and the Niels Bohr Institute at the University of Copenhagen, based their research on the Titus-Bode Law. Formulated in 1770, Titus Bode law is considered a major achievement when it comes to predicting the orbital sequence of planets.
The researchers used this formula on 1,000 exoplanets and on another 3,000 presumed exoplanets. They examined 151 planetary systems. Having applied the Titius Bode law, they discovered that 124 were spaced out well in conformity to the applied law.
Steffen Kjær Jacobsen, PhD student in the research group Astrophysics and Planetary Science at the Niels Bohr Institute at the University of Copenhagen, posed in a statement:
“Using T-B’s law, we tried to predict where there could be more planets further out in the planetary systems. But we only made calculations for planets where there is a good chance that you can see them with the Kepler satellite.”
To read the study findings in detail, you can go through the public release covering the research.