22 questions · 9 almanac · 0 findings

Commercial Spaceflight

Private-sector rockets, launch vehicles, and space companies.

Almanac Twenty Million Dollars for Eight Days in Orbit
  • Why did NASA object to Dennis Tito's visit to the International Space Station while Russia agreed to fly him?
  • How much did Dennis Tito pay for his trip and how long did he spend aboard the ISS?
Almanac The Same Booster, Twice to Orbit
  • Why had rocket boosters historically been discarded or expensively refurbished rather than simply reflown?
  • What happened during the March 2017 flight of the reused Falcon 9 booster?
  • How did proving booster reuse change the economics of spaceflight?
Almanac Two Boosters Land Together, a Car Heads to Mars
  • How did the Falcon Heavy's two side boosters manage to land simultaneously at Cape Canaveral?
  • What happened to the central core booster that was supposed to land on the drone ship?
  • What payload did SpaceX launch on the Falcon Heavy's maiden flight, and where did it end up?
Almanac Two Failures That Counted as Data
  • How does Starship's first-stage thrust compare to the Saturn V rocket?
  • What happened during Starship's first and second integrated flight tests in 2023?
  • Why did SpaceX describe both failed test flights as successful?
  • What role is Starship intended to play in NASA's Artemis program and future Mars missions?
Almanac Up and Down, Intact at Both Ends
  • How did Starship's first three flight tests in 2023 each end in the vehicle's destruction?
  • What made the Super Heavy booster's splashdown in the Gulf of Mexico during Flight 4 a success?
  • Why was surviving atmospheric reentry a critical milestone for Ship 29 on the fourth integrated flight test?
  • Why is returning intact at both ends a prerequisite for Starship's stated goal of landing on the Moon and Mars?
Almanac Steel Arms Catch a Falling Skyscraper
  • How does the Super Heavy booster catch manoeuvre work, and what happened during Starship's seventh flight test?
  • What milestones did SpaceX reach with Falcon 9 launches and booster reuse in 2025?
  • What capabilities did later 2025 Starship tests demonstrate beyond the booster catch, like satellite deployment?