Science Fiction
Science fiction explained in five minutes: the big ideas (the Fermi paradox, the dark forest, Dyson spheres), the real science behind them, the authors and the books.
Uncanny Valley
The uncanny valley is the idea that a robot or animated figure that looks almost, but not quite, human can feel more unsettling than one …
Nov 11, 2026
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Alex Ng
Ganymede
Ganymede is the largest moon in the solar system, a world of rock and ice that circles Jupiter every seven days. It is wider than …
Nov 11, 2026
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Alex Ng
Jupiter's Moons
Jupiter has more than 90 known moons, but four dominate: Io, Europa, Ganymede and Callisto, found by Galileo in 1610. Io erupts with volcanoes, Europa …
Nov 11, 2026
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Alex Ng
History of Science Fiction
The history of science fiction runs about 200 years, from Mary Shelley's Frankenstein in 1818. Jules Verne and H. G. Wells built the base, pulp …
Nov 11, 2026
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Alex Ng