Gravity and Supernova - My understanding

vendredi 27 septembre 2013

My understanding of Gravity



Gravity is a force which is acting on all celestial bodies and exerting pressure on them from all directions (Ex.1 Like water exerts pressure on a submarine when dives)



Stars when loose their fuel can't withstand this force and shrink and shrink where they can't shrink anymore and result in a supernova (assuming a star is big enough)



If the size of the star is reducing because it losing mass, the relative gravity being applied on it should also decrease, but it rather increases (or so i assume) and causes a supernova.



There are some conceptual differences in my understanding. Kindly clarify me.



I will follow up with more questions once I start getting explanations.



Thank you






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