Planetarium Show – The Late Heavy Bombardment: When Our Solar System was a Giant Shooting Gallery

Friday, July 19, 2013 at 8:00pm

Smith Hall, room 521 Towson University, 8000 York Rd, Towson, MD 21252, USA

Presenter:   Dr. Parviz Ghavamian, 
Towson University. 

We are used to thinking of our solar system as an uneventful place where all the planets quietly came into existence out of a swirl of gas and dust.  However, there is mounting evidence that shortly after the planets formed, our solar system endured a very violent childhood.  Planets moved out of their orbits and huge planetesimals collided with the young planets.  In this cosmic shooting gallery, our Earth and Moon were not spared.  In fact we may owe the water in Earth's oceans and the existence of rare heavy elements (such as gold) in Earth's crust to this violent period, called the Late Heavy Bombardment.  

Telescope viewing, weather permitting.

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