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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. More >>

Star

en.wikipedia.org/wiki/Star

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 Earth ...

What is a star? - Sky & Telescope

www.skyandtelescope.com/astronomy-resources/what-is-a-star/

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 ...

What is a star? | Cool Cosmos

coolcosmos.ipac.caltech.edu/ask/204-What-is-a-star-

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 ...

What is a Star? - Universe Today

www.universetoday.com/24351/what-is-a-star/

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 ...

What is a Star? - Observatorio ARVAL

www.oarval.org/star.htm

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 reflected ...

NASA - A Star Is a Big Ball of Gas

www.nasa.gov/audience/forstudents/k-4/stories/a-star-is-a-big-ball-of-gas-text.html

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 ...

What is the difference between a "star" and a "sun"? (Beginner ...

curious.astro.cornell.edu/physics/78-the-universe/stars-and-star-clusters/general-questions/346-what-is-the-difference-between-a-star-and-a-sun-beginner

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 ...

What is a star? - Bob the Alien's Tour of the Solar System

www.bobthealien.co.uk/starsintro.htm

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 ...

Popular Q&A
Q: What is a star?
A: Just like our Sun, stars are spheres of gases that give off tremendous energy, light, and heat. While the gases that make them may vary, it is always hydrogen t... Read More »
Source: www.answers.com
Q: What is a star?
A: A star is a big ball of gas. It is not star-shaped. Stars give off heat and light. Read More »
Source: www.nasa.gov
Q: What is the star
A: A star is a massive, luminous ball of plasma. The Sun is the nearest star, and source of Earth's most energy! They're also famous people we dream about being! Read More »
Source: www.kgbanswers.com
Q: What is a star ?
A: Star - a massive, luminous ball of plasma. The Sun is the nearest star, source of Earth's most energy! Read More »
Source: www.kgbanswers.com
Q: What Is a Star?
A: The mutual gravitational attraction of a star's matter is what forces it into a roughly spherical shape. In fact, if there were nothing to counteract this inwar... Read More »
Source: www.britannica.com