BREVARD COUNTY, Fla. — The debut launch of ULA’s heavy-lift Vulcan Centaur rocket has been delayed again, this time because of a large explosion.

>>> STREAM CHANNEL 9 EYEWITNESS NEWS LIVE <<<

The company said it is now targeting June or July for its maiden flight.

READ: Meteor show: Lyrids to reach peak

ULA hoped to launch next month, but that was before a test article for the rocket’s upper stage exploded. ULA is still running down an apparent hydrogen leak.

The company also said the Vulcan Centaur will fly when it’s safe to do so, but all other developmental activities have been completed.

READ: SpaceX’s first launch of Starship spacecraft with world’s biggest rocket ends in mid-air explosion

See the full story in the video above.

VIDEO: SpaceX’s first launch of Starship spacecraft ends in mid-air explosion SpaceX’s first integrated Starship Super Heavy Launch successfully lifted off from its Boca Chica, TX launchpad Thursday morning. (Melonie Holt, WFTV.com/WFTV)

Click here to download the free WFTV news and weather apps, click here to download the WFTV Now app for your smart TV and click here to stream Channel 9 Eyewitness News live.