Bitcoin Astronomy is Dhruv Bansal’s thought-provoking trilogy of essays outlining how bitcoin and blockchain technology might evolve as humanity expands into space – and even how alien civilizations might converge on similar solutions. This academic yet imaginative series (“The Law of Hash Horizons,” “Kardashev Money,” and “Beyond Humanity”) blends astrophysics and economics to explore bitcoin’s role on planetary, interplanetary, and galactic scales.