Starship's Third Flight Test [video]

Original Article ↗ Hacker News Discussion ↗

SpaceX’s third integrated flight test of its Starship rocket achieved major milestones, including a clean liftoff, successful hot-staging, nearly complete booster return burn and a high‑velocity suborbital trajectory that reached near‑orbital speed. Viewers followed detailed live telemetry and unprecedented HD reentry footage via Starlink, even as the booster impacted the ocean at high speed and the upper stage ultimately broke up during atmospheric reentry. Commenters highlight the rapid progress over previous tests, ongoing challenges like engine relight, attitude control and reentry survivability, and debate SpaceX’s choice to stream primarily on X amid rampant fake YouTube “live” feeds.

Launch coverage and streaming

  • Many commenters sought non‑YouTube, non‑Twitter/X ways to watch (m3u8/VLC links, embedded stream on spacex.com, alternative YouTube channels).
  • Widespread frustration with Twitter/X’s reliability and UX (login friction, delay, lack of rewind).
  • Multiple people were fooled by fake YouTube “SpaceX” streams showing old launches and crypto scams; criticism that YouTube handles takedowns and spam poorly.
  • Some prefer independent commentary (Spaceflight Now, NASASpaceflight, Everyday Astronaut), while others dislike donation-driven “grifty” styles.

Mission expectations and success criteria

  • Expectations ranged from “likely to explode at some stage” to “orbital velocity and maybe engine relight and reentry.”
  • General consensus: reaching near-orbital speed and performing payload-door and fuel-transfer tests made this a major step forward compared to IFT‑1 and IFT‑2.
  • Many frame the test as a success because Starship demonstrated heavy-lift capability and multiple in-orbit experiments, even though reentry failed.

Orbit vs suborbit

  • Extended debate on whether Starship “reached orbit”:
    • One side: it hit ~26,000 km/h and followed a transatmospheric/elliptical path intentionally intersecting the atmosphere; “close enough” in capability terms.
    • Other side: per calculations and trajectory, perigee remained below Earth’s surface (~‑55 km), so technically suborbital.
  • Agreement that a small additional burn and different trajectory would achieve a stable orbit, but this was intentionally avoided to ensure reentry.

Reentry, relight, and vehicle issues

  • Booster: boostback and partial landing burn worked, but it hit the ocean at ~1000+ km/h; called a “smashdown,” not a soft splashdown.
  • Ship: planned in-space Raptor relight was skipped due to excessive roll; this is seen as a key missing demonstration for controlled deorbit.
  • Reentry: spectacular live plasma views via Starlink; observers saw tumbling/rolling, possible tile loss, and eventual breakup around ~65 km altitude.
  • Some suspect attitude-control issues (RCS performance, icing, leaks) and/or heat-shield damage; all flagged as speculative within the thread.

Subsystem tests: payload door and fuel transfer

  • Payload door: stream showed opening/closing; some later analysis suggests it may not have fully latched correctly. Outcome considered partially unclear.
  • Fuel transfer: internal tank-to-tank cryogenic propellant transfer of several tons was reportedly attempted; callouts claimed success, but final verdict depends on data review.

Reusability, economics, and use cases

  • Many stress that true value comes from reusability and controlled splashdowns/landings of both stages; current system is effectively an expendable heavy launcher.
  • Debate over costs versus Falcon 9 and legacy rockets: some think even expendable Starship could be competitive; others highlight large engine counts and development expense.
  • Discussion of future payloads:
    • Starlink v2 and larger satellites enabled by Starship’s size/mass.
    • Ability to launch ISS‑scale mass in just a few flights vs. dozens historically.
    • Lunar missions: refueling architecture may require 6–15 tanker launches; seen as economically viable only with reuse.

Regulation, FAA, and safety

  • Some accuse the FAA of slowing progress; others argue safety and investigation after IFT‑1’s out-of-control behavior justified caution.
  • Nuanced view: once timelines became predictable, SpaceX aligned readiness with regulatory approval; delays now less constraining than immediately post‑IFT‑1.
  • Safety concerns about uncontrolled Starship reentries: many argue regulators will require demonstrated relight and controlled deorbit before allowing true orbital missions.

Emotional and cultural reactions

  • Strong sense of awe at live HD views of ascent and reentry, compared to historic missions.
  • Multiple commenters describe the event as “sci‑fi made real” and emotionally moving, while others caution against overhyping until reuse and full mission profiles are proven.