Quotes about comets (14 Quotes)






    We may have had a 10th and 11th planet that collided. It's also possible that the outward migration of Neptune scattered comets and small planet bodies, inducing collisions in the asteroid belt. The close passing of a neighboring star could have had a similar effect.


    Without a doubt our planet will be hit again many times in the future, unless we can prevent it from happening. We're not sure yet what the best way to do this is, but in order to figure that out, we've really got to better understand what comets and asteroids are made of and how they're put together. So, in a sense, Deep Impact is our latest attempt to get to know our potential enemies.





    The science that's going to come out of this, that's going to tell us about the early formation of our solar system, the role that comets have played in the formation of Earth and ourselves, that will unfold over the next few years. The science that this project is returning will be unprecedented.

    Previous research in Europe may provide the answer. Scientists made artificial comets of finely powdered organic materials and ice in a vacuum. They always ended up with a rigid, crusty material, ... If you were standing on it you might go right through it.

    Would we want to do the same thing to a different type of comet I don't want to answer that question until we have analyzed the results from this comet. It depends on what picture we piece together from observing beneath this comet's surface,

    How did clay and carbonates form in frozen comets We don't know, but their presence may imply that the primordial solar system was thoroughly mixed together, allowing material formed near the Sun where water is liquid, and frozen material from out by Uranus and Neptune, to be included in the same body.



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