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Wednesday, April 8, 2015

Chances To Find Extraterrestrials Would Be Better At Older Super-Earths

Astronomer, Laura Schaefer at Harvard-Smithsonian Center for Astrophysics, has run computer simulations to know if these similar factors would result in the same on Earth-like planets, which are five times more massive than Earth.

Earthlike worlds that are around 2 to 4 times the mass of Earth would be capable of establishing and maintaining their oceans better than Earth, according to Schaefer’s finding. Her finding specifically suggests that super-Earths possibly keep their oceans vital for up to ten billion years. However, Schaefer notes that once alien worlds grew further, their ability to jumpstart oceanic growth will be hindered by size.
Schaefer, therefore, concludes that looking for ET life would be best possible at older super-Earths. Scientists and alien hunters at SETI might get better results if they use foreign oceans as their guide for extraterrestrial life. However, many aquatic inhabitants here on Earth are still unknown and yet to be explored. Perhaps, it would be best for scientists to start exploring deep into Earth’s ocean to discover a life that is equally alien.

The elements that help sustain life on Earth may also present in extragalactic super-Earths as suggested by a new study. These alien worlds are believed to contain similar eon-spanning oceans that play a significant role in the birth and evolution of Earth life.

It has been scientifically established that water is necessary for life and its development. Earth’s oceans appear to have been designed for all terrestrials as they have been around for billions of years, allowing water to catalyze a release of biological complexity.

Infant Earth was bombarded by countless of comets and asteroids. Water ices and rocky materials from outer solar system hit our planet. Accumulated alien ices covered the titanic gulfs surrounding Earth’s continents while also depositing the enormous amount of water in the planet’s mantle. Entire oceans lie beneath the seafloor because of the continuous subduction of Earth’s tectonic plates. These oceans are waiting to be brought back to the global water table by mid-ocean ridges and deep-sea volcanoes.



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