SpaceX to launch 12th Starship test flight before major IPO

SpaceX is set to launch the 12th test flight of its Starship rocket system on Thursday, debuting a more powerful third-generation vehicle that is critical to its interplanetary ambitions and its upcoming initial public offering. The 90-minute launch window from the company's Starbase facility in Texas is scheduled to open at 7 p.m. ET.

"As is the case with all developmental testing, the schedule is dynamic and likely to change," SpaceX said on its website, after delaying the launch initially planned for May 19.

The flight is the first for Starship V3, which stands over 400 feet tall and features 33 redesigned Raptor engines intended to produce more thrust. The mission plan involves a suborbital flight with the Super Heavy booster attempting a splashdown in the Gulf of Mexico, while the upper stage travels to make a controlled splashdown in the Indian Ocean about an hour later. This follows a series of 11 previous tests that saw explosive failures, a successful booster catch, and the first deployment of mock satellites.

A successful flight would validate the new design and build confidence ahead of a planned June IPO that could value SpaceX at $1.75 trillion, according to a recent Reuters report. The V3 vehicle is also essential for NASA's Artemis program, which selected Starship as one of two lunar landers to return astronauts to the moon, alongside Blue Origin's Blue Moon lander.

The Long Road to V3

The upcoming launch marks the culmination of a rapid and often explosive testing campaign that began in April 2023. The first flight ended in a mid-air explosion, as did the second test in November 2023. Subsequent flights in 2024 showed marked progress, with the fourth flight achieving the first-ever controlled splashdown of the upper stage.

A major breakthrough occurred during the fifth test in October 2024 when the launch tower's mechanical arms successfully caught the descending Super Heavy booster for the first time. However, the next several flights between November 2024 and May 2025 resulted in a string of failures, including two in-space explosions and a loss of control, leading to investigations by the Federal Aviation Administration. SpaceX recovered in August 2025, successfully deploying a batch of mock Starlink satellites during its 10th flight, a key objective for the company's satellite launch business. The 11th flight in October 2025 served as the final test of the previous vehicle generation.

What's at Stake for Flight 12

This debut flight of the V3 hardware is designed to prove its capability for long-duration spaceflight and in-orbit refueling, necessary for future missions to the Moon and Mars. Beyond simply reaching space, the mission includes deploying 20 dummy Starlink satellites. Two of these are specially modified to test systems for scanning Starship's heat shield during flight, a method for analyzing its readiness for reuse on future missions.

For investors, the flight is a major demonstration of progress toward the rocket's operational phase. A success would likely reinforce the high-end of its potential $1.75 trillion IPO valuation and solidify its advantage over competitors. A failure, however, could introduce fresh delays and create uncertainty around both the IPO timeline and the company's ability to execute on its contracts with NASA. The performance of the V3 will be closely watched as a key indicator of the company's trajectory ahead of its market debut.

This article is for informational purposes only and does not constitute investment advice.