Starship's Fourth Flight Test [video]

Original Article ↗ Hacker News Discussion ↗

Streaming & Access

  • Initial confusion over Elon Musk’s claim of “exclusive” streaming on X; users note:
    • Official video embedded on SpaceX’s own site, viewable without an X account.
    • Multiple reports of X failing to load the broadcast (“something went wrong”) and 2FA issues.
  • Some viewers can watch without logging in; others hit login walls, creating inconsistent experience.
  • Several people use tools like VLC/mpv plus yt-dlp / captured HLS URLs (Periscope/pscp.tv) to bypass X’s UI and watch on TVs.

Alternative Coverage & Scam Risks

  • Many prefer third‑party YouTube streams (Everyday Astronaut, NASASpaceflight, etc.) for easier TV access, extra commentary, thermal cams, and long-range tracking footage.
  • Others explicitly want only the official SpaceX feed.
  • Strong warnings about fake YouTube “official” Starship streams repurposed for crypto scams, often via hijacked channels renamed to look like SpaceX.

Launch Timing & Countdowns

  • Users share countdown links (timeanddate, launchcountdown.live), debug timezone errors, and note revised launch times (e.g., 7:20 Texas time, 12:50 UTC).
  • Complaint that time labels using only local timezone names are confusing for international viewers.

SpaceX Test Strategy & Explosions

  • Discussion of Starship’s repeated failures:
    • Supporters frame them as expected outcomes for prototype, hardware‑rich, fast‑iteration development.
    • Critics argue Starship progress is far from program goals.
  • Prior issues mentioned: clogged thrusters (possibly ice), liquid oxygen filter/engine restart problems, likely upcoming heat shield challenges.
  • Clarification that vehicles are intentionally terminated after splashdowns to avoid leaving hazardous “floating bombs.”

Flight 4 Performance

  • Overall sentiment: visible, steady progress compared to earlier tests.
  • Booster:
    • Executes controlled descent and soft splashdown in the Gulf of Mexico, briefly hovering before tipping over.
    • Future plan is to “catch” it; no droneship used here.
  • Ship:
    • Achieves orbit according to live discussion.
    • Reentry footage of heat progressively eating into a fin is noted as particularly dramatic.

Orbital Velocity & Trajectory Debate

  • Intense back‑and‑forth over IFT‑3:
    • One side: vehicle never reached true orbital velocity (citing telemetry and orbital mechanics); claims post‑flight messaging overstated success and revised the stated goals.
    • Other side: insist IFT‑3 was always planned as suborbital at roughly orbital speed for safety, with no deorbit burn planned; argue critics misread pre‑flight materials.
  • Broader complaints from some that SpaceX/Musk communications blur lines between planned goals and ex‑post narratives.

Technical Notes

  • Max‑Q time shifts from ~52s (IFT‑2/3) to ~62s (IFT‑4), seen as indicative of trajectory/flight profile changes.
  • “Floaters” seen near the ship are mostly identified as ice (from cryogenic propellants) and possibly tiles; one commenter suggests some could be satellites reflecting engine light.
  • A hot‑staging ring is seen drifting past the booster; users attribute relative motion to tiny aerodynamic differences at very high speed.