Asteroid Impacts on Deep Watery Planets/Moons?

[Dav333]

Just curious what your thoughts are on ~10mile objects hitting deep oceans on large planets &/or Moons with very deep oceans? They say Earth is dry & that other planets & moons could have oceans 100's of KM's deep. Would there be any material being ejected into the atmosphere & blocking out the sun? As the vast water might soak up all the debris & slow the object? Would be some monster tsunamis on the shorelines.

Just curious.

 

[vandegg]

Just curious what your thoughts are on ~10mile objects hitting deep oceans on large planets &/or Moons with very deep oceans? They say Earth is dry & that other planets & moons could have oceans 100's of KM's deep. Would there be any material being ejected into the atmosphere & blocking out the sun? As the vast water might soak up all the debris & slow the object? Would be some monster tsunamis on the shorelines.

Just curious.

I don't know about the Earth being dry but i would bet that an asteroid hitting an ocean would send a lot of water vapor into the atmosphere. Water vapor is a greenhouse gas so it may cause the planet to warm up some.