Astronomers in Hungary have confirmed that there are "two satellites" made up entirely of dust orbiting the earth.
Scientists have suspected the existence of these satellites since 1961, when the Polish astronomer Kazimierz Kordeliuski discovered the bright spots, but its existence remained a controversial subject.
Sunlight is reflected on the particles of dust leading to their glow, but it is difficult to see them from Earth because of the relative brightness of other objects in space.
The two scientists, Judith Sels-Gagau and Gabor Horvath of the University of Eötvös Loránd, were able to detect dust clouds using special polarization filters placed on search cameras and published the results in the monthly notices of the Royal Astronomical Society.
Clouds are formed when particles are trapped in space within the "Lagrange points", regions where the gravitational pull is balanced by two opposite orbits, making the particles relatively stagnant at a fixed distance.
Astronomers identified 5 similar points near the Earth, including the two spots near L5, and believed that there were similar configurations near L4.
It seems that because Lagrange points are relatively stable, they are ideal places for satellite positioning, by consuming less fuel to stay in orbit.
Scientists have suspected the existence of these satellites since 1961, when the Polish astronomer Kazimierz Kordeliuski discovered the bright spots, but its existence remained a controversial subject.
Sunlight is reflected on the particles of dust leading to their glow, but it is difficult to see them from Earth because of the relative brightness of other objects in space.
The two scientists, Judith Sels-Gagau and Gabor Horvath of the University of Eötvös Loránd, were able to detect dust clouds using special polarization filters placed on search cameras and published the results in the monthly notices of the Royal Astronomical Society.
Clouds are formed when particles are trapped in space within the "Lagrange points", regions where the gravitational pull is balanced by two opposite orbits, making the particles relatively stagnant at a fixed distance.
Astronomers identified 5 similar points near the Earth, including the two spots near L5, and believed that there were similar configurations near L4.
It seems that because Lagrange points are relatively stable, they are ideal places for satellite positioning, by consuming less fuel to stay in orbit.
source
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