This livestreamed footage shows the launch procedure. The only other earlier Block 5 flight-that took place this last May-also entailed a brand-new rocket.

The launch of a SpaceX Falcon 9 rocket carrying Telesat's Telstar 19 VANTAGE communications satellite is scheduled to liftoff at 1:50 a.m.

Telstar 19 VANTAGE is expected to enter commercial service this summer after it has successfully completed orbit raising and comprehensive in-orbit testing. Ever since, the engineers have been assessing how the Block 5's core had performed during that flight, since the rocket is designed for reusability.

Before this launch, SpaceX got rid of a backlog of their Block 4 rockets by launching without landing them back on Earth. Cumulus clouds and thick clouds are the primary weather concerns on launch day. The Telstar 19V-that was developed by California-based firm SSL-will offer broadband service to users throughout the Atlantic Ocean region and Americas, as per a Telesat fact sheet.

History made at British Open by Italy's Molinari
If someone was expecting a charge, probably they weren't expecting it from me, but it's been the same the whole of my career. The yellow grass of a dry summer in Scotland comes to life Sunday because of a red shirt at the British Open .

This time around, it will be Canada's Telstar 19V satellite that makes the trip to high, geostationary orbit atop a "Block 5" Falcon 9 rocket.

According to Patrick Air Force Base, there's a 60 percent chance that SpaceX will run into launch-favorable weather in Florida on Saturday night (early Sunday morning), as per a weather forecast published on Friday by the base's 45th Space Wing. Within less than 9 Min following blast-off, the first stage of the rocket's descended back to Earth, excelling a landing on board "Of Course I Still Love You", the SpaceX drone vessel, some hundred miles away from the Florida coast.

Using so-called grid fins at the top of the booster to maintain its orientation, the rocket re-started a single engine as it neared the drone ship, deployed four landing legs and settled to a picture-perfect touchdown on the landing deck.

SpaceX plans to only fly Block 5 stages of the Falcon 8 rocket from here onwards, without any major upgrades.