There are two methods for determining the absolute age of a rock, so-called radiochronology: The isochronous method The cosmogenic nuclide method These two methods are based on natural nuclear disintegration…
142
234423
As we said in the introduction, you have to prepare your observation before looking at the sky. At first it is not easy to recognize the stars and find the…
88
232989
During the night you will not only see stars in the sky but many other objects: The Moon: every month, for about 25 days, the Moon is visible in the…
The Fall of Meteorites
112
233551
112
233551
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…
Shooting Stars and Meteorites
122
233631
122
233631
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
133
226621
133
226621
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…