What is a white dwarf?
A white dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel.
How does a star become a white dwarf?
When a star like our Sun runs out of fuel, it expels its outer layers and leaves behind a hot core, which becomes a white dwarf.
What is the size and temperature of a white dwarf?
White dwarfs are typically about the size of Earth but can reach temperatures of over 100,000 degrees Celsius when they first form.
Do white dwarfs eventually cool down?
Yes, over billions of years, white dwarfs will cool and fade, eventually becoming black dwarfs, though this process takes longer than the current age of the universe.
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