When I throw a drop of [Yogurt](http://en.wikipedia.org/wiki/Yogurt) (through spoon) into a dish of Yogurt, it caused something like a meteor hitting the earth and something occurs similar to the place a meteor hitting the earth (stable for a few seconds).

![meteor impact](http://static.panoramio.com/photos/large/11624841.jpg)

How to explain this process through fluid dynamics?

Is there an equation to explain this fluid dynamical process?

![meteor splashes](http://www.lmm.jussieu.fr/~zaleski/fig/splashnew.jpg)

(**Note:** sometimes the impact of a meteorite is referred to as splashing, if small bits of ejecta are formed.) 

What is The Physics of a Splash?