A star is a luminous sphere of plasma held together by its own gravity. The
nearest star to Earth is the Sun. Many other stars are visible to the naked eye
Jul 15, 2014 ... A star is a luminous ball of gas, mostly hydrogen and helium, held together by its
own gravity. Nuclear fusion reactions in its core support the ...
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 ...
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 ...
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.
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 ...
Pleiades open star cluster. Credit: NASA, ESA, AURA/Caltech, Palomar
ObservatoryA star is a huge glowing ball of hot gas, mainly hydrogen and helium.
4 days ago ... Every star you see in the night sky is bigger and brighter than our sun. .... So
technically, the sun is a dwarf star, sometimes called “Yellow ...
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
Our nearest star, the Sun, is so hot that the huge amount of hydrogen is
undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb. Even