Star Tracks Wednesday April 18 2018

Indystar provides the latest news, sports, weather, and entertainment updates for indianapolis and indiana residents. A star is a luminous spheroid of plasma held together by self-gravity. [1] the nearest star to earth is the sun.

Their immense distances. The amount of material in a star (its mass) is so huge that a nuclear reaction called nuclear fusion goes on inside it. This reaction changes hydrogen to helium and gives off heat. These large, swelling stars are known as red giants. But there are different ways a star's life can end, and its fate depends on how massive the star is.