SpaceX is about to attempt Starship’s 5th flight test. Here’s how to watch it live.

• SpaceX is gearing up for Starship’s fifth flight test on Sunday.
• The test follows a successful fourth attempt, with both the booster and upper stage landing in the ocean.
• SpaceX says the main goal of the fifth test is to catch the booster back at the launch site.

SpaceX is preparing for another flight test of Starship, the world’s most powerful rocket that Elon Musk hopes will one day take humans to Mars.

The spacecraft’s fifth flight test is set to take place on Sunday at around 8 a.m. ET. A livestream will begin around 35 minutes before launch and will be available to watch on X or on the SpaceX website.

It follows a successful fourth flight test in June, which saw both the Super Heavy booster and the upper stage of the rocket land in the ocean after launch.

The booster landed in the Gulf of Mexico after breaking away from the upper stage, while the latter eventually landed in the Indian Ocean after re-entering the atmosphere.

The fifth flight test aims to replicate the upper stage’s landing as well as achieve the Super Heavy booster’s first return and catch at the launch site, according to SpaceX’s website, which said the mission aimed to take “another step towards full and rapid reusability.”

The spacecraft underwent several major upgrades ahead of the flight test on Sunday, including a rework of its heat shield.

SpaceX said its technicians spent 12,000 hours replacing Starship’s thermal protection system with “newer-generation tiles, a backup ablative layer, and additional protections between the flap structures.”

“This massive effort, along with updates to the ship’s operations and software for reentry and landing burn, will look to improve upon the previous flight and bring Starship to a soft splashdown at the target area in the Indian Ocean,” the company said.

SpaceX’s Crew-8 mission to undock from the International Space Station and return to Earth was also due to begin on Sunday.

But the company said unfavorable weather conditions off the coast of Florida — the planned landing site — meant SpaceX and NASA were “standing down.”

“Teams will continue to monitor weather conditions for the next available opportunity,” the company said.