Question

which type of star never produces fusion in its core?
red dwarf
white dwarf
brown dwarf
black dwarf

Explanation:

• Red dwarfs: Have core fusion (hydrogen - to - helium).
• White dwarfs: Are remnants of stars that had core fusion in their main - sequence phase.
• Brown dwarfs: Lack sufficient mass for sustained hydrogen fusion in their cores.
• Black dwarfs: Hypothetical end - stage of white dwarfs (white dwarfs had core fusion in the past).

Answer:

brown dwarf