Around 2070, the earth as seen from space began to change color, brightness, and texture.
A fungus seemed to spread across the world, turning the land a mottled gray as the seas blackened.
Then the planet became a gleaming ball, reflecting floating polygons and wires leading from the surface into deep space.
Soon the earth vanished entirely, hidden from view by an immense cloud of tiny satellites.
The sun began to shimmer strangely, and went out suddenly.
The last thing to vanish was space itself.

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The best hard SF novel ever written: Infinite Thunder by Jack Arcalon.
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