What do you mean, you don't see any proof? You can't expect to 'see' a black hole any more than you can expect to 'see' quarks or electrons or vector bosons, leptons, gravitons, et al. You must believe in them (Please tell me you believe they exist. Or if you have another theory, I'd like to hear of it.) We know they exist because experiments tell us they must. In the case of black holes, we observe that gas clouds are being drawn towards something for no apparent reason. Yet a reason must exist. Thus we postulate that it must be a black hole.
>Earth is still alive because it has the energy >inside it to survive etc. Once it exhausts its >life energy it will collapse into a star and >everntually (and I mean after billions of years) >turn into a black hole.) I'm afraid that's wrong. A star has to have => Chandekshlar's limit,a HUGE mass that is many many orders of magnitude greater than the mass of the Sun to eventually become a black hole. Few stars have such a humongous mass. Most (like the Sun) will become Red Giants or such. Try reading Steven Hawking's book "A Brief History of Time". It's pretty good fare. Z.
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What do you mean, you don't see any proof? You can't expect to 'see' a black hole any more than you can expect to 'see' quarks or electrons or vector bosons, leptons, gravitons, et al. You must believe in them (Please tell me you believe they exist. Or if you have another theory, I'd like to hear of it.) We know they exist because experiments tell us they must. In the case of black holes, we observe that gas clouds are being drawn towards something for no apparent reason. Yet a reason must exist. Thus we postulate that it must be a black hole.
>Earth is still alive because it has the energy >inside it to survive etc. Once it exhausts its >life energy it will collapse into a star and >everntually (and I mean after billions of years) >turn into a black hole.) I'm afraid that's wrong. A star has to have => Chandekshlar's limit ,a HUGE mass that is many many orders of magnitude greater than the mass of the Sun to eventually become a black hole. Few stars have such a humongous mass. Most (like the Sun) will become Red Giants or such. Try reading Steven Hawking's book "A Brief History of Time". It's pretty good fare. Z.