astronomyseeker

Are there any plans to monitor Deimos or Phobos during the movement through the dust cloud? Do either of these two bodies have a "shell" of material around them already and would bombardment of dust from the comet show these shells?

Do certain comets and/or asteroids have well known density characteristics? Would a Oort comet be more likely to end in an "above ground" explosion ( Tunguska Event) as opposed to making it all the way down to the surface and making an impact?