Our dusty companions
Our dusty companions
Confirmed the existence of the "clouds of Kordylewski", satellites of the Earth.
The Lagrange Points are certainly strange places. There, as a result of the gravitational interaction between two celestial bodies, an equilibrium situation is produced that allows others to remain there in a truly stable way, orbiting that region as if an invisible planet existed. They exist in all the planets of the Solar System, and in the case of those generated by the land and the Sun, we see how points 1 and 2, located before and behind our planet with respect to our star, are widely used by modern astronomy to place their space observatories for obvious reasons.
But not only with the planets this situation occurs. Also between planets and moons we can observe it, as for example with Dione, moon of Saturn, to which they accompany in their trip the small Helene Y Polydeuces, trapped in the points of Lagrange 4 and 5 that this generates together with the planet. It is not the only case, but it perfectly exemplifies what always happens when two celestial bodies interact gravitationally. And the question is obvious: can the same thing happen in the system Earth-Moon? The answer was not clear, but now a new study, led by Gábor Horváth of the Eötvös Loránd University, seems to have come up with the definitive answer, which is affirmative. We are not as alone as we thought, even if only in the form of dusty clouds.
But let's go back a few decades, until 1961, when the Polish astronomer Kazimierz Kordylewski said observe clouds of dust at the point of Lagrange 5. Since then that possibility remained in limbo, since they are so tenuous and hard to see that many had questioned its existence, so Horváth and his team set out to find a method of detecting them without a shadow of a doubt. The solution was to trace the possible light reflected by these particles, and that therefore it would be polarized, that is, showing a particular direction of oscillation. And that's what they found, with a pattern that matches their own predictions and Kordylewski's observations.
"They are two of the most difficult objects to find, and although they are as close to Earth as the Moon, they are ignored by astronomy researchers. It is interesting to confirm that our planet has dusty Pseudo-satellites in orbit with our lunar neighbor", Explains Horváth. Stable or a transitory phenomenon? New observations should confirm this, especially considering its enormous potential as lunar exploration platforms and beyond. Our dusty traveling companions may not be willing to leave us so easily.
Kazimierz Kordylewski, the first to say observe clouds of particles in lunar orbit.
As we would see one of these clouds its (much) brighter.
The Lagrange points, present in any system of two celestial bodies, are the planets and the Sun, and between any of them and their moons.
Knowing the conditions at Lagrange Land-Moon Points is vital for the future, as they could be vital in future space projects.
Earth's dust cloud satellites confirmed
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