A team of scientists led by Dirk Schulze makuch, a geobiologist at Washington State University (WSU), has identified more than 20 exoplanets that may be more conducive to life than Earth. < / P > < p > one of the main problems that puzzles modern science is whether there is life elsewhere in the universe. Although no direct evidence of such life has been found, exoplanet missions like Kepler have changed many of our ideas about how planetary systems form and have provided scientists with a way to think about life outside the solar system without relying so much on Conjecture and speculation. < / P > < p > of the more than 4000 exoplanets discovered so far, some are considered habitable, although this is a slightly misleading word. These habitable planets are usually rocky planets, in the right orbit around their star, at temperatures that are moderate enough to allow liquid water to exist on its surface without freezing or boiling. < / P > < p > now, researchers at Washington State University have refined the search and have identified 24 candidate exoplanets that are not only habitable but also more habitable than Earth. Located more than 100 light-years away from the sun, these exoplanets are selected from Kepler’s archives of exoplanets of interest to Kepler. They were chosen because they have some characteristics that may make them better able to sustain life. < / P > < p > the researchers believe that one of the things that makes a planet more habitable is its star. The usual assumption is that an orbit around a G-type star like the sun would be the best place to find a habitable planet. However, such stars have a life span of only about 8 billion to 10 billion years. K-dwarfs are cooler and lighter than the sun, but have a lifetime of up to 70 billion years – giving life a longer time to emerge and develop. < / P > < p > another pair of factors will be size and quality. The earth is habitable in part because it is large enough, geologically active to have a protective magnetic field, and enough gravity to retain the atmosphere. According to the team, if a planet is 10% larger, it will have more surface area to live on. If it is 1.5 times the mass of the earth, it will retain more heat from radioactive decay, stay active for a longer time, and keep the atmosphere longer. < / P > < p > in addition, if a world is 5 degrees hotter than the earth and has more water, it will enjoy the biodiversity of tropical rainforests in most parts of the earth. < / P > < p > the team said none of the 24 planets found had all of these features, but one had four key factors. In any case, these 24 planets may become the focus of future telescope research. < / P > < p > “sometimes it’s hard to convey this principle of super habitable planets because we think we have the best planets,” Schulze makuch said. “We have a lot of complex and diverse life forms, and a lot of life forms that can survive in extreme environments. It’s good to have adaptive lives, but that doesn’t mean we have the best of everything. ” Global Tech