
-----------------------------------
gheorghe1800
14 Dec 2009 16:57


-----------------------------------
Saturn has rings likely because one of its smaller icy moons got too close and was torn apart. This is likely not an uncommon occurrence in some planet's histories. The rings are not permanent structures, and will eventually disappear.

The rings are made of chunks of dirty ice from boulders down to snowflakes.

Enceladus has volcanos that erupt with water, showering the orbit of Saturn with it. This feeds the rings.

Deci daca Pamantul ar avea sateliti facuti in mare parte din gheata si care sa fie destul de apropiati ([url=http://en.wikipedia.org/wiki/Roche_limit]in limita Roche), ar putea avea probabil inele. Dar din moment ce suntem foarte aproape de Soare, inelele s-ar topi si vaporii cel mai probabil s-ar dispersa in spatiu sau ar fi inglobati in atmosfera.
