A concept of more enduring popularity is that of asteroid mining, featured in early works such as Clifford D. Simak's 1932 short story "The Asteroid of Gold"—where asteroids were often the setting of a space version of the Klondike Gold Rush—as well as more modern works like Ben Bova's 2001 novel The Precipice (part of his Grand Tour series).
A notion that has endured in popularity is that of asteroid extraction, featured in early literature such as Clifford D. Simak's 1932 short story "The Asteroid of Gold"—where asteroids often represented the backdrop for a spacefaring equivalent of the Klondike Gold Rush—as well as more recent works like Ben Bova's 2001 novel The Precipice (part of his Grand Tour series).