Alien oceans Possible Present In Super Planet Earth

Astronomy Science ~ According to new research, alien planets more massive than the Earth can have long-lived oceans. The scientists used ...

Astronomy Science ~ According to new research, alien planets more massive than the Earth can have long-lived oceans.

The scientists used computer models to show that the so-called planetary "super-Earth" (a rocky planet has a mass of up to five times more than the Earth -) could have long-lived oceans. This model suggests that the potential of the seas can survive on this planet for billions of years, allowing life developed on the alien planet. The researchers present their findings at the 225th meeting of the American Astronomical Society in Seattle.

"When one considers the whether planet is in the habitable zone, they think about the distance from the star and its temperature," said Laura Schaefer of the Harvard-Smithsonian Center for Astrophysics (CfA) in Cambridge, Massachusetts said in a statement. However, they also have to think about the existence of super-Earths oceans.

This illustration shows the giant gas planet rises over the horizon of the water planet of aliens.
This illustration shows the giant gas planet rises over the horizon of the water planet of aliens.
Scientists think that the Earth's oceans has been around as long as the planet formed and water is the key to life as we understand it. Therefore, finding another world with long-lived oceans could help scientists narrow the planet who might have the best potential for life.

Recycled earth's oceans. The water from the oceans of Earth is pulled into the mantle from the crust due to geological activity, but water is also released from the mantle and return to the ocean surface through volcanic activity. The new computer model generated by Schaefer and his team designed to test whether this water recycling can occur also in super-Earth with tectonic plates.

In fact, some planets larger than the Earth can be better to maintain than the planet's oceans. Schaefer models indicate that a planet has a mass of 2-4 times the mass of Earth could be a sea of ​​houses that can last up to 10 billion years. The largest planet in this study, which has a mass about five times more massive than Earth, the oceans can sustain a very long amount of time.

Schaefer and his team showed that it might be better to hunt for life on super-old Earth planet. Researchers may have a better chance of finding a more complex life on the planet that has the age of one billion years older than Earth, the team said.

"It takes time to develop chemical processes for life on a global scale, and it took time for life to change the planet's atmosphere," said Dimitar Sasselov, co-author of the study. "So, it takes time also to detect life."
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Astronomy Science: Alien oceans Possible Present In Super Planet Earth
Alien oceans Possible Present In Super Planet Earth
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