SpaceX is attempting another launch of its massive Starship rocket, aiming for a successful flight after previous explosive failures.
This ambitious mission is crucial for Elon Musk's plans to send humans to the Moon and eventually colonize Mars.
The launch, from SpaceX's Starbase in Texas, includes testing new heat-resistant materials and deploying communications satellite simulators.
Success would be a major step towards making Musk's vision of a Martian city a reality, though many challenges remain.
