You are confusing thinking with consciousness. As I pointed out, there's awareness and then there is informed awareness. Both types of awareness are kinds of consciousness.
You are completely missing the not-so-subtle distinction I'm making and you still have not answered the question of "what do you think consciousness is?
This is from Wikipedia and basically how I'd define consciousness:
Consciousness is a state that defies definition, but which may involve thoughts, sensations, perceptions, moods, emotions, dreams, and an awareness of self, although not necessarily all of these.[1] Consciousness is a point of view, an I, or what Thomas Nagel called the existence of "something that it is like" to be something.[2] Julian Jaynes has emphasized that "Consciousness is not the same as cognition and should be sharply distinguished from it. ... The most common error ... is to confuse consciousness with perception." [3]
Ned Block divides consciousness into phenomenal consciousness, which is subjective experience itself (being something), and access consciousness, which refers to the availability of information to processing systems in the brain (being conscious of something).[4]
More on consciousness:
http://en.wikipedia.org/wiki/ConsciousnessThinking and consciousness go hand in hand.
Your own definition of awareness is too unambiguous:
http://en.wikipedia.org/wiki/AwarenessI'm sorry but I think you do not have a clear concept of neither science nor philosophy. Can you tell me what you think the difference between science and philosophy is?
Science is a subset of philosophy (previously known as natural philosophy). Science deals with the natural world, whilst philosophy deals with everything BUT the natural world.
Considering the understanding of the nervous system and body plan of a starfish by the scientists of today, it can be said with great probability that the discussion of a starfishes "consciousness" can be undertaken by science.