Well, that was unfortunate and unexpected.
On X, the company said the team "is determining the next best available opportunity to fly".
It's possible that could be tomorrow.
So, with that, we'll wrap up our live coverage here. Thanks for joining me during that brief period.
SpaceX’s Dan Huot said the company is now going to offload the millions of pounds of propellant on board the Starship spacecraft and Super Heavy booster.
It seems as though there were two issues with the launch.
Well we didn't get to see the rocket launch!
They can't lift-off today and have to stand down!
SpaceX could launch in 24 hours but won't know until it troubleshoots the issues. We haven't actually heard what was wrong with the Super Heavy booster.
Wait, no it isn't.
As they started counting back down, they've had to pause again and go back to T-40 seconds. There are still some problems with the Super Heavy booster.
SpaceX say it has some more trouble shooting steps to take to try get the rocket into space but only time will tell.
SpaceX says it can still hold on at T-40 seconds for several more minutes.
If it can't solve the issue with the Super Heavy Booster, it will have to stand down for the day and could launch again as early as tomorrow.
SpaceX built in a hold for T-40 seconds as flight controllers are working to solve an issue with the Super Heavy booster. Details of the problem were not disclosed.
We're holding at T-40 seconds for final launch checkouts but it looks like the issue has been resolved with a solution!
Here's the trajectory that Starship will travel during today's mission:
Today's flight test will target objectives not reached on the previous test.
This includes Starship's first payload deployment and multiple re-entry experiments geared towards returning the upper stage to the launch site for catch.
The SpaceX team will also be hoping to catch the Super Heavy booster again with the "chopstick" arms.
Hello all and welcome to our live coverage of Starship's eighth flight test.
The team over at SpaceX will be hoping for a smoother test flight this time round after the rocket's upper-stage exploded, sending debris over the Atlantic Ocean during the seventh test.
On X, SpaceX said the team is "go for prop load" so we should expect lift-off in around 5 minutes.