I n the constant search for extraterrestrial life, NASA's study of the US space agency proposes that some icy worlds in our outer cosmic system may have coasts of liquid water below the surface. According to NASA's new research, the heat produced by the gravitational pull of moons created from massive collisions could increase the life span of oceans of liquid water beneath the surface of vast icy worlds in our outer solar system . This dramatically expands the number of places where alien life can be discovered since liquid water is required to support known forms of life and scientists expect there to be dozens of these worlds.
Prabal Saxena of NASA's Goddard Space Flight Center in Greenbelt, lead author of the research published in Icarus on November 24, said these objects should be considered as possible reservoirs of water and life. "If our research is correct, we can now have more places in our solar system that possess some of the crucial elements of extraterrestrial life."
These distant worlds are discovered beyond the orbit of Neptune and include Pluto and its moons. They are identified as Trans-Neptunian Objects and are too cold to have liquid water on their outside, where temperatures are below 350 degrees below zero Fahrenheit, however, there is evidence that some may have layers of liquid water beneath their scabs. frost
In addition to the apparent densities that are related to other bodies that are suspected of having subsurface oceans, an investigation of the light reflected from some TNO reveals signatures of crystalline water ice and ammonia hydrates. objects, the water ice adopts a disorganized and amorphous shape instead of the crystals ordered regularly in As warmer as snowflakes on Earth.
In addition, space radiation converts crystalline ice into water and the amorphous structure breaks down ammonia hydrates, so they are not supposed to survive for long on TNO surfaces. This proposes that both compounds can come from a layer of internal liquid water that is expelled to the surface, this is known as cryovolcanism.
Study co-author Wade Henning of NASA's Goddard Space Flight Center in Greenbelt, Maryland, said that we observed that tidal warming could be a turning point that may have protected oceans of liquid water below the surface of large TNOs like Pluto and Eris to this day.
The conclusion greatly expands the number of places where extraterrestrial life can be found since liquid water is required to support known forms of life and cosmologists consider that there are dozens of these worlds.
The lead author of NASA's Prabal Saxena research claimed that these objects should be considered as possible reservoirs of water and life. 19659003] Mr. Saxena went on to say that if our research is correct, we can now have more places in our solar system that contain some of the critical elements of extraterrestrial life.
The research team used the equations for tidal warming and calculated their contribution to "warm up the budget" for a wide variety of observed and open TNO lunar systems, which involve the Eris-Dysnomia system. Eris is the second most significant of the TNO currently identified after Pluto. The researchers determined that gravitational interaction with a moon can produce enough heat inside a TNO to significantly increase the life span of a subsurface ocean.
The NASA research team would also like to improve and use even more accurate tide warming models and interior TNOs to know how long the warming of the tides can increase the shelf life of an ocean of liquid water and how it emerges the orbit of the moon as the heating of the tides dissipates the energy. The crew would like to explore at what point an ocean of liquid water is formed, whether it forms almost instantaneously or whether it requires a remarkable buildup of heat first.
Tags: Frozen surface, NASA, Neptune, Pluto, Pluto Ocean