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by Randall Munroe, author of ‘What If?’ ‘How To’ ‘Thing Explainer’. A webcomic of romance, sarcasm, math, and language.
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Earth Sized Planets

2026-10-30 12:00:00

It probably has an icy mantle over the real silicate geology, but I'm hoping something weird happened to burn off most of the water like with Io.

Gravitational Square Wave

2026-10-28 12:00:00

Depending on the energy deposition I can manage, it might also be a fun prank on the rest of the Earth.

Siege Engine

2026-10-26 12:00:00

They initially thought the containment structure alone would be sufficient, but for good measure they decided to include the Elephant's Foot inside.

Forms of Water

2026-10-23 12:00:00

The 'light' refers to bremsstrahlung.