The Earth–Moon system has 5 stability points where the relative position of bodies situated there is maintained by the gravitational forces. Two of these purported Lagrange points, L5 and L4, outline an equal-sided triangle with the Moon and Earth and rotate the Earth as the Moon shifts along its orbit.
L5 and L4 are not entirely steady, as they are bothered by the Sun’s gravitational pull. Nevertheless, they are deemed to be sites where interplanetary dust may gather, at least momentarily.
Kazimierz Kordylewski, a Polish astronomer, in 1961, discovered 2 bright regions close to the L5 point, which may denote a buildup of dust particles, with several descriptions since then, however, their intense faintness makes them complicated to spot and numerous researchers doubted their subsistence.
KDCs were modeled by Gábor Horváth, an Eötvös Loránd University scientist, and team in a new study to evaluate how they shape and how they may be identified. They were interested in their form utilizing polarizing filters that send out light with a specific oscillation direction, like those observed on a few sorts of sunglasses.
Reflected or scattered light is always less or more polarized, based on the angle of reflection or scattering. The researchers then embarked to discover the dust clouds. The team, with a linearly polarizing filter system connected to a CCD detector and camera lens at a private observatory in Hungary, the researchers took exposures of the purported location of KDC at the L5 point.
The pictures they gained demonstrated polarized light replicated from dust, expanding well outside the camera lens’ field of view. The astronomers were capable of discard optical artifacts as well as other effects, implying that the existence of the dust cloud is substantiated.
On the other hand, the Hubble Space Telescope has recommenced normal operations subsequent to startling few weeks when it appeared like the robust spacecraft was on its final legs.