Star Tracks Sunday December 31 2017

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. A star is a luminous spheroid of plasma held together by self-gravity.

Many other stars are visible to the naked eye at night; 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. Indystar provides the latest news, sports, weather, and entertainment updates for indianapolis and indiana residents.