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Expert-level knowledge on any topic. Each capsule guides you through what matters most.
3 capsules
The Billionaires Race to Make Humans a Multiplanetary Species
Efforts to colonize the moon and Mars are underway with reusable rockets and space tourism paving the way for affordable and sustainable space travel, aiming to protect humanity's future beyond Earth.
Mars Colonies Face Bigger Radiation and Resource Hurdles Than Moon Settlements
This capsule argues that colonizing Mars presents far greater challenges than lunar bases due to intense radiation exposure during transit and on the surface, along with complex resource extraction needs requiring advanced shielding and in-situ manufacturing. While many expect Mars to be the next step, the Moon’s closer proximity and more accessible resources make it a more realistic and practical first target for sustainable space colonization. Adopting this view shifts focus toward developing lunar infrastructure and technologies that can later support Mars missions more safely and efficiently.
You Can't See the Great Wall from Space
The claim that the Great Wall is visible from orbit survives in textbooks and trivia nights despite astronauts saying otherwise. The arguments here approach the myth from different angles: the physics of human eyesight, firsthand astronaut testimony, the role of cameras and optical aids, and why comfortable falsehoods outlive clear corrections. It becomes a lesson in how to test what everyone knows.