NASA’s announcement of the discovery of a new extrasolar planet has been with a lot of excitement.it might just as well resemble Venus, or something entirely different.
The planet, Kepler-452b, was detected by the Kepler telescope, by using few methods we are able to find the size of the planet but not all conditions on the planet was found to be 60% larger than the Earth.
It orbits a sun-like star once every 384.84 days. The planet receives a similar amount of radiation as we do from the sun; just 10% higher. This puts the Kepler-452b in the so-called “habitable zone”.
The habitable zone is the region around a star where liquid water could exist on a suitable planet’s surface.
Kepler-452b’s radius tells that the planet divide between a rocky planet and a small Neptune. the authors put the probability of the planet having a rocky surface about 50%-60%, so it is by no means sure.
If Kepler-452b nevertheless has a similar composition to Earth, we run into another problem: gravity. Based on an Earth-like density, Kepler-452b would be five times more massive than our planet.
This would correspond to a stronger gravitational pull, capable of drawing in a thick atmosphere to create a potential runaway greenhouse effect, which means that the planet’s temperature continues to climb. This could be especially problematic as the increasing energy from its ageing sun is likely to be heating up the surface. Any water present on the planet’s surface would then boil away, leaving a super-Venus, rather than a super-Earth.
As far as we know, there are no other planets in the same system. This is an issue because it was most likely our giant gas planets that helped direct water to Earth.
Well these are few things about the new bigger twin of our planet Earth. Estimating a planet is not so easy, many factors influence the existence of life on a planet. Though all those factor satisfy for the existence of life, still we should work too hard to get there. So let’s hope we find a way to a new HOME.