KIDS TRIVIA

Detailed explanation-1: -Once the temperature reaches 15, 000, 000 degrees Celsius, nuclear fusion takes place in the center, or core, of the cloud. The tremendous heat given off by the nuclear fusion process causes the gas to glow creating a protostar. This is the first step in the evolution of a star.

Detailed explanation-2: -These are known as brown dwarfs. The International Astronomical Union defines brown dwarfs as stars massive enough to fuse deuterium at some point in their lives (13 Jupiter masses, 2.5 × 1028 kg, or 0.0125 solar masses).

Detailed explanation-3: -In high mass stars, fusion happens more rapidly than in low mass stars, so they produce more heat and are hotter than low mass stars.