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NASA Scientist revealed the Real Problem with SpaceX Starship Program!
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#spacezone #space #spacex #starship #spacexstarship
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NASA Scientist revealed the Real Problem with SpaceX Starship Program!
When Starship had its first flight in 2023, even though it exploded, everyone cheered as SpaceX announced that the goal was to gather data, and that part had been a success. Each flight after that saw Starship crush milestone after milestone. However, Flight 7 exploded 11 minutes after liftoff. Flight 8 spun out of control. Flight 9 suffered a fuel leak and disintegrated on reentry. Starship’s repeated test launch failures are forcing experts to ask tough questions about the super-heavy launch platform’s actual viability. What is really going on inside SpaceX’s Starship program right now? What's the solution?
NASA Scientist revealed the Real Problem with SpaceX Starship Program!
In order to unravel all of that, scientists have gone back to a basic question: What makes a fully reusable rocket so hard?
To fully reuse a rocket means that all of its parts must return safely to Earth so they can be flown again. In the case of SpaceX’s Starship, this includes both the Super Heavy Booster and the Starship upper stage.
Let’s start by looking at how SpaceX reuses the Booster. Instead of relying on a small number of large engines, SpaceX designed the Super Heavy with a large number of smaller Raptor engines. This design choice provides redundancy. If one or two engines fail, the vehicle can still complete its mission. This concept has already been proven successful with the Falcon 9 rocket.
NASA Scientist revealed the Real Problem with SpaceX Starship Program!
After stage separation, the Super Heavy Booster is guided back down using grid fins for aerodynamic control. By the time it reenters for landing, most of its fuel has been spent, leaving the vehicle much lighter. It becomes essentially a large, mostly empty tube. This reduced mass means only a small amount of thrust is needed for a safe landing.
In the case of the Starship Booster, it initially ignites 13 of its inner engines. Then, in the final moments of landing, it shuts most of them off, leaving only 3 central engines running. These core engines are capable of gimballing, allowing for precise control during descent, and are finally caught by the launch tower's arms, also known as "chopsticks". This also means Starship, or any reusable rocket, must be able to restart its booster engines mid-flight. This is something traditional rockets never had to worry about. Historically, boosters were ignited once on the launch pad, burned until the fuel ran out, and then fell back to Earth, usually burning up in the atmosphere or crashing into the ocean.