SpaceX delayed its seventh test launch of Starship by 24 hours on Wednesday due to weather concerns, pushing back an experiment that will feature the spacecraft’s first payload deployment test in what may be the latest milestone for the Elon Musk-owned aerospace company as it develops reusable rockets.

SpaceX, the private space technology company owned by Elon Musk, is asking federal authorities to approve a new round of tests for a prototype reusable rocket, but some of them may never make it back to the surface intact and will crash in the ocean.

SpaceX’s Starship prototype failed shortly after launch from Texas, disrupting Gulf air traffic and sparking safety concerns.

Elon Musk's Space X has launched a rocket carrying two lunar landers, which took off into space this morning (15 January). Blue Ghost and Resilience, built by private companies in the US and Japan, left Earth aboard a SpaceX Falcon 9 rocket from NASA ’s Kennedy Space Center in Florida at 1:11 a.m. ET (6:11 GMT).

It took a while, but investors and space enthusiasts are finally getting the drama they have been looking for: David versus Goliath, but in space. SpaceX, owned by Tesla CEO Elon Musk, is set to test its huge Starship launch vehicle on Thursday afternoon.