This is a special discounted price for fans of Isaac Arthur.
Isaac Arthur on Nebula
Conformal Cyclic Cosmology
Nebula Plus
Conformal Cyclic Cosmology is a theory by physicist Roger Penrose for how the Universe might undergo cycles of decay and expansion, resetting over aeons, and in this Nebula Exclusive we'll explain the theory and how it might be proved.
Planets vs Megastructures
Nebula Plus
A Nebula Exclusive examining the pros and cons of terraforming planets versus constructing immense space habitats and artificial worlds.
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Isaac Arthur
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Real Engineering
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