Physics 01
Project Hail Mary Astrophage Science: The Real Math
We run the numbers on Astrophage: E=mc² energy, the 1.5 g trip to Tau Ceti, the 25.984 µm Petrova line, and why the Hail Mary's fuel load falls short.
spaceflight
Space 02
How Long Does It Take to Get to Mars? The Orbital Math
About 7 months, but why? We derive the 259-day Hohmann transfer, the 26-month launch window and why most real probes arrive in 200 to 230 days.