Will Universe Become More Habitable in Future?

Several astronomers worldwide and NASA’s planet-hunting telescope have been looking for earth-like planets since a long time. Earlier, they have found some planets in the observable universe, which could be inhabitable. Does it mean the universe is becoming more habitable today?

Experts agreed that today’s universe is more in support of welcoming life than it was when life first emerged on our planet. They also speculated that there’re high chances of the universe becoming more habitable in the future. Seeing today’s universe, it could be said that future of planets is going to be good, said Pratika Dayal from Kapteyn Astronomical Institute of the University of Groningen.

Scientists said when formation of stars winds down, radiation levels by the stars decrease. With the drop in the dangerous radiation level, environment becomes more than 20 times as habitable as our planet when first life evolved here. “At the same time, the sheer number of tiny dim stars—each of which could potentially support life-promoting planets—increases the likelihood that life might evolve in the future. These facts render Earth's current inhabitants “premature” in the life of the solar system”, suggested a new study.

Researchers of the study led by Avi Loeb of the Harvard-Smithsonian Center for Astrophysics considered tiny, dim stars. Due to the ubiquity and long life of these stars, called red dwarfs, it becomes easy for life to evolve. The researchers said that around such stars, life may become more than thousand times more likely to grow in future.

Still, life around these red dwarfs is a matter of debate in science community. When these stars are young, they’re very active and it is not known whether planets are capable of surviving heat and radiations emit by the sun at that time.