SpaceX is attempting to launch its biggest and most powerful rocket ever today - here are Falcon Heavy's impressive stats

SpaceX is preparing to launch Falcon Heavy, its most powerful rocket to date.

On Tuesday, the 23-story-high system was sitting upright, ready to go at Launch Complex 39A in Florida, the same platform where the Apollo astronauts took off for the moon decades ago.

This is the first time Elon Musk's private space company has tried to launch a rocket quite this big.

Falcon Heavy is re-usable, expandable, and cheaper than the competition - if it works. But Musk is emphasizing that this launch is still just a test.

"There's so much that could go wrong," he told reporters on Monday. "If something goes wrong, hopefully it goes wrong far into the mission, so we'd at least learn as much as possible along the way."

Take a look at the massive experiment underway at the Kennedy Space Center: