Yes, the green flame is caused by burning copper from depleting fuel in the regenerative cooling circuit and going oxygen-rich (closer to stoichiometric temperature) in the main combustion chamber.
Slight underperformance of engines on this flight is the reason. The booster is meant to land with tiny residuals, so the solution is to improve engine performance and performance consistency (underway with Raptor V3.2), as well as adjust flight software to do MECO1 about one second earlier to ensure enough propellant for boostback and landing (tiny change).
These early ships and boosters are already outdated by improved designs in production or on the test stand, so this booster loss does not change our timeline to reach high volume, fully reusable Starship flights.
🚨 BREAKING NEWS! The engineer who created Claude Code from scratch just posted a 28-minute video that's pure gold:
how to write prompts that actually deliver ridiculously good results.
I've seen $300 courses that don't even come close to what he explains in the first 10 minutes.
CLAUDE.md files, memory shortcuts, parallel sessions, and prompting patterns that almost no one uses…
All in one video. Completely free. No fluff.
Whether you're a developer, just starting out now, or already using Claude for months: this changes the game for you starting today.
Save. Watch. Share.