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An Invisible Electric Field Has Been Detected Around Earth For The First Time By NASA Scientists, Offering New Perspectives On The Electromagnetic Phenomena That Surround Our Planet
In a discovery that promises to revolutionize our understanding of planet Earth, NASA scientists have detected, for the first time, an invisible electric field surrounding the planet.
Called ambipolar field, this new form of energy had been predicted over 60 years ago, but has only now been measured, thanks to recent technological advancements.
The finding is an important milestone in space science and geophysics, opening doors to a new way of understanding the evolution and behavior of Earth.
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According to astronomer Glyn Collinson, from NASA’s Goddard Space Flight Center, the ambipolar field is a phenomenon that every planet with an atmosphere should have.
Its discovery represents a starting point for exploring how this field has shaped the planet over billions of years. “Now that we have finally measured it, we can start to learn how it has shaped our planet and others over time,” Collinson explains.
Earth: A Dynamic Planet Full of Fields
Although it may seem like a relatively stable mass of land and water, Earth is surrounded by a series of fields that play essential roles in maintaining its structure and protecting life. Among them, the gravitational field is the most well-known, keeping the atmosphere and Earth’s surface together.
The magnetic field, generated by the movement of conductive materials in the Earth’s core, acts as a shield against solar wind and cosmic radiation.
However, in addition to these, there is another field that was previously mysterious. In 1968, scientists noticed an intriguing phenomenon: a spacecraft flying over the poles of the Earth detected a supersonic wind of particles escaping from the atmosphere.
This “escape” of particles suggested the existence of an unknown electric field, the ambipolar field, which has now finally been detected decades later.
What Is The Ambipolar Field And How Does It Work?
The ambipolar field is generated in the ionosphere, a layer of the atmosphere located about 250 kilometers above sea level.
In this region, the Sun’s ultraviolet radiation ionizes the atoms, creating a separation between negatively charged electrons and positively charged ions.
The difference in electrical charges generates a field that acts on these elements, pulling ions down and allowing lighter electrons to escape into space.
This dynamic creates a plasma environment, where the ambipolar field neutralizes the effects of gravity on certain particles, allowing some, like hydrogen ions, to escape at high speeds toward space.
The result is what scientists call “polar wind,” a flow of particles moving rapidly from the poles of Earth.
Although incredibly weak, the ambipolar field plays a crucial role in atmospheric dynamics. The Endurance mission, developed by Collinson and his team, was specifically designed to measure this phenomenon.
In May 2022, the mission was launched and reached an altitude of 768.03 kilometers. After collecting the data, the team was able to measure a change in electric potential of only 0.55 volts – a seemingly small value, but sufficient to confirm the field’s existence.
The Implications Of The Ambipolar Field For Science
With the measurement of the ambipolar field, scientists can now begin to investigate its broader implications.
This weak electric force, for example, is responsible for ejecting hydrogen ions at supersonic speeds from the poles of Earth.
This also has a significant impact on the ionosphere, a critical layer for radio and satellite communication, increasing its density by up to 271% at high altitudes.
What makes this discovery even more exciting is the fact that it opens up a series of new questions. “This field is a fundamental part of how Earth operates,” emphasizes Collinson. “And now that we have finally measured it, we can really start to ask some of these bigger and more exciting questions.”
NASA scientists still need to fully understand how the ambipolar field affects Earth’s evolution.
What have been its contributions to the atmosphere over billions of years? Did it play a role in developing the conditions necessary for life? How does it influence climate and atmospheric patterns?
The Future Of NASA Scientists’ Research On The Ambipolar Field
Now that the ambipolar field has been measured, new research will be conducted to explore its properties and impact.
The Endurance mission is just the beginning, and NASA scientists hope this discovery will lead to a better understanding not only of Earth but also of other planets with atmospheres, such as Mars and Venus, which may have similar ambipolar fields.
The research was published in the journal Nature.
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