Stars form when dense portions of interstellar medium condense due to gravity.
The collapsing cloud of dust and gas forms a large, hot core that develops into a main sequence star. As these stars decay, they expand, and their later fate depends on the star's original mass.
A star is a luminous sphere of plasma held together by its own gravity. The
nearest star to Earth is the Sun. Other stars are visible to the naked eye from
Jul 15, 2014 ... Nuclear fusion reactions in its core support the star against gravity and produce
photons and heat, as well as small amounts of heavier ...
A star is a huge sphere of very hot, glowing gas. Stars produce their own light
and energy by a process called nuclear fusion. Fusion happens when lighter ...
Jan 29, 2009 ... ... in the night sky and you'll see lots of stars. But what is a star? In a scientific
sense, a star is ball of hydrogen and helium with enough mass th.
www.ask.com/youtube?q=What Is a Star?&v=32WyKgdBQgE
Nov 27, 2012 ... Science expert Emerald Robinson explains what a star is and the different parts
of its life cycle.To view over 15000 other how-to, DIY, and ...
The basic difference between a star and a planet is that a star emits light
produced in its interior by nuclear 'burning', whereas a planet only shines by
Apr 2, 2008 ... Twinkle, twinkle, little star. How I wonder what you are. What is a star? A star is a
big ball of gas. It is not star-shaped. Stars give off heat and ...
Jun 27, 2015 ... A star is called a "sun" if it is the center of a planetary system. A large number of
planets have been found that orbit other stars, thus making ...
A star is a massive ball of gas which produces heat and light. There are billions of
stars in the universe. The nearest star to Earth is the Sun. A star is usually ...