Astronomers have confirmed the existence of two satellite dust clouds at the Earth’s L4 and L5 Lagrange points 250 thousand miles away, first spotted back in the 1960s.
The images they obtained show polarised light reflected from dust, extending well outside the field of view of the camera lens. The observed pattern matches predictions made by the same group of researchers in an earlier paper and is consistent with the earliest observations of the Kordylewski clouds six decades ago. Horváth’s group were able to rule out optical artefacts and other effects, meaning that the presence of the dust cloud is confirmed.
Since these locations are potential space station locations, determining the existence and nature of these dust clouds is important.