21 March 2010
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Q.What are stars?
A.A star is a massive, luminous ball of plasma that is held together by gravity. A star shines due to thermonuclear fusion in its core releasing energy.
Q.Does light bend around a black hole?
A.Light waves can be bent by distortions in space-time caused by massive objects such as black holes; but even planets can bend light to some degree.
Q.What is a neutron star?
A.Neutron stars are the densest objects in the universe. They are thought to form from the collapsed remnant of a massive star.