infinite number of stars = infinite number of planets = infinite number of solar systems capable of sustaining life = infinite number of "earths"
that is if you believe the universe is unending. i don't think we can ever really quite understand that concept.
Space is so big and there are so many unknown universes that it is completely possible that there is another planet like ours with the same exact history, places, and people.
The thought of space is so hard to comprehend. our planet is like a grain of sand on a beach.
Definitely use the Drake equation in your debate. It predicts the amount of advanced civilizations willing to communicate just in our galaxy RIGHT NOW, and most estimates predict ~100. That doesnt include primative life, but only intellegent, organized life forms.
Scientists also think that because life on Earth delevoped so quickly (<800 million years), that any planet that can support life, will at some point, develop it.
So, its prettymuch guarunteed that there is life outside our solar system, we're just not technologically advanced enough to detect it.
talk about the defination of life and why is it that other life forms need water and a mild 70 degrees to sustain life functions like we do, the defination we have given life is our conatationed version of it who sais thats what all life needs this to live if you dont think that way then you have a very egocentric/ geocentric perception of life and our existance
no, it's actually quite exilerating, but my all time fav is quazar surfing.
Nothing quite like the feeling of tidal forces contorting your body down to the atomic level and falling into the abyssal singularity