Jul

14

Hot `Super Earths` could host life

Filed Under Space | Posted By Jennifer Sullivan |



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A new research has unveiled that hot and heavy, rocky worlds called ’super-Earths’ may offer the accurate conditions for life, even those orbiting looks close to their stars.

According to a report in New Scientist, at up to 15 times the mass of Earth, the rocky bodies are massive and soother to spot than Earth-sized worlds. Indeed, technological advances led to the invention of up to 45 new super-Earths and astronomers say a third of all Sun-like stars may host the strong planets.

Lisa Kaltenegger of the Harvard-Smithsonian Center for Astrophysics in Massachusetts, US, said, “There is no evidence about the essential different chemical cycles for life on our planet would not operate on super-Earths.”

Super-Earths orbiting have gravitational tugs that keep them ‘tidally locked’ to their hosts which means that one of planet always experiences its star and the manner the Moon always shows the similar side to Earth.

Early models unveiled that the atmospheres of such worlds would disappear fast as water vapor and other atmospheric molecules on the planet’s dark side would change into ice.
Kaltenegger told New Scientist that might be the atmosphere on the dark side was thoroughly iced out, then it would squeeze atmosphere from the hot side and also icing that out.

But new models disclose that if a tidally locked super-Earth has an atmosphere at least as massive as Earth’s, the powerful winds could shift heat from hot to cold side and if the planet has a global ocean, then its currents could scatter the warmth. The super-Earths could host life as close as 0.05 astronomical units far from dim stars called red dwarfs which make up about 85 percent of the stars in the galaxy.

According to scientists, super-Earths might even be expected to back life than their Earth-sized cousins. Recent research suggests that super-Earths will have more plate tectonic activity than smaller rocky worlds.



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