Life & fun · alternatives · 2026
24 alternatives to Astrophysics for People in a Hurry
What is the nature of space and time?
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Astrophysics for People in a Hurry launched in 2017; newer entries below may have overtaken it.
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A short and sweet textbook on Einstein’s theory of relativity
2021 · ramp-book.com · its alternatives →
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Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
2025 · atlasof.space · its alternatives →
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A meditation on exploring time, travel, and technology
2016 · its alternatives →
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The astounding interconnectedness of the universe
2016 · its alternatives →
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Google Translate for engineers working with motion
2017 · its alternatives →
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Bringing ‘A Brief History of Time’ to a whole new generation
2016 · its alternatives →
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Planets, stars, constellations, and mesmerizing poetry.
2016 · its alternatives →
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Real stories from the men and women who have been to space
2016 · its alternatives →
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A 3D universe explorer & astronomy app, in your browser
Jun 2026 · space.pointdynamics.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →