SpaceX Starship upper stage floats near Christmas Island after orbital test flight
A 52-meter stainless steel SpaceX Starship upper stage unexpectedly remained afloat in the Indian Ocean for 24 days following an orbital test flight launched in late July, according to a report bypoznatsvet.cz. The rocket stage, covered in thousands of dark thermal protection tiles, was initially mistaken for unknown ships by residents of the remote Australian territory of Christmas Island before local fishermen approached the structure in boats.
Orbital test flight and atmospheric descent
The Starship rocket launched from Starbase in Texas to deploy the next generation of Starlink satellites. During its roughly one-hour orbital stay, the spacecraft tested maneuverability in microgravity and systems designed for future missions to the Moon. After completing its payload duties, the upper stage initiated a controlled atmospheric descent to test thermal stress limits and aerodynamic control. The vehicle settled near Christmas Island, where engineers originally anticipated it would sink to the ocean floor.
Salvage operations by SpaceX engineers
SpaceX dispatched a team of engineers alongside the specialized vessel Strong to retrieve the floating booster from the Indian Ocean, Ars Technica reported. The multi-day recovery operation required teams to verify structural integrity, secure stability on the water, and rig crane systems for lifting the heavy steel cylinder onto a ship. Specialists focused on inspecting the Raptor engines, checking insulation layers, and collecting thermal tile samples for post-flight analysis.
Data recovery from the surviving booster
The retrieval of a flight-tested upper stage from a marine environment gives SpaceX engineers physical telemetry and hardware data from an actual orbital reentry. Specialists recovered material samples from the heat shield to evaluate how the stainless steel hull and its thermal tiles withstood atmospheric friction and saltwater exposure. Every recovered deformation, crack, and scorch mark provides metrics for engineers designing subsequent iterations of the launch system.
Starship upper stage floats near Christmas Island
Why did the Starship upper stage float instead of sinking?
The 52-meter stainless steel hull remained buoyant on the water’s surface for 24 days after its controlled ocean touchdown.
What was the primary objective of the July test flight?
The mission launched from Starbase in Texas to deploy the latest generation of Starlink satellites while testing orbital maneuvering capabilities and high-temperature atmospheric reentry performance.
How did local residents discover the floating rocket?
Fishermen and residents of Christmas Island first noticed the massive metal structure bobbing in the Indian Ocean, initially mistaking the 52-meter cylinder for passing marine vessels before inspecting it up close by boat.
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