August 10th: the tears of Saint Lawrence and the night of the shooting stars

In August, as Earth’s orbit crosses the dust ejected by the comet Swift-Tuttle (the largest object known to repeatedly pass by Earth) provides a fabulous spectacle for viewers on Earth. It is a regular event every year and, as usual, it will reach its peak between the 10th of August (St. Lawrence) and the 12th. Despite talk of “shooting stars”, the Perseids are actually debris (dust and ice) left behind by the comet Swift-Tuttle as it goes around the Sun. The comet last reached perihelion, the closest point to the…

Read More