In the past it has happened that some meteorites are so big and so heavy that they violently hit the Earth forming huge craters several kilometers in diameter! In fact …
Most asteroids orbit very far from the Earth, between Mars and Jupiter. Some debris however or dust released by the tail of comets can cross the Earth at the chance …
From time to time we see comets in the sky. Like asteroids, they are large, dusty, icy rocks several hundred meters long and a few kilometers in diameter. There are …
225088 Gonggong (2007 OR10) discovered on January 8, 2005 by Michael Brown and his team thanks to the 1.26 m telescope of Mount Palomar, it is also a dwarf planet. In …
Until 2006 it was the last planet of the solar system. It belongs today to the family of the dwarf planets because its characteristics are too different from those of …
Neptune has 14 known moons, which are named for minor water deities in Greek mythology. By far the largest of them is Triton, discovered by William Lassell on October 10, …
Neptune is invisible to the naked eye. It was discovered in 1846 by Urbain Le Verrier because something disrupted the orbit of Uranus. The astronomer then made calculations and located …