Heat Death of the Universe: The Big Freeze

The Heat Death, or Big Freeze, is the most widely accepted scenario for the universe’s end.
It occurs when the universe expands so much that stars, galaxies, and black holes fade away.
Over trillions of years, stars will burn out, leaving only white dwarfs, neutron stars, and black holes.
Eventually, even black holes will evaporate through Hawking radiation.
As energy spreads thin, the cosmos will reach maximum entropy—no usable energy left.
Temperatures everywhere will approach absolute zero.
No processes will be possible—no light, no heat, no life.
Galaxies will drift apart until they slip beyond each other’s horizons.
This “frozen” future could last for unimaginable timescales—10¹⁰⁰ years or more.
The Heat Death marks not a sudden end, but an eternal fading into darkness.