Watch SpaceX launch a re-used Falcon 9 rocket live right here

In the process, SpaceX will tie and then surpass its high mark of eight successful launches in a calendar year - if it can avoid the type of failures that derailed fast starts in each of the two previous years. But Musk is trying to lower the cost of space travel by getting his rockets to land on autonomous platforms floating in the ocean; SpaceX has spent at least $1 billion developing these capabilities, according to Quartz. But a successful landing after launch may be hard because the Geo Stationary Transfer Orbit requires the first stage rocket to reach a significantly higher altitude than other recovered missions.

"Following stage separation, Falcon 9's first stage will attempt a landing on the "Of Course I Still Love You" droneship, which will be stationed in the Atlantic Ocean".

The pad underwent a number of renovations and adjustments to adapt it for the needs of the Falcon 9 and Falcon 9 Heavy rockets SpaceX uses for its launches. The BulgariaSat-1 Mission will deliver a commercial communications satellite to orbit aboard SpaceX's Falcon 9 rocket. Further launch details are forthcoming, but we will update this post when we know more. SpaceX hasn't yet released its Sunday webcast link, but that one should also be livestreamed. SpaceX will once again be teaming up with Iridium-this time, to ferry up 10 satellites for the company's NEXT network.

SpaceX is scheduled to make history once again on Friday afternoon.

This previously flown Falcon 9 booster first launched and landed in January.

It would also ease space industry doubts about whether SpaceX can stick to its ambitious launch schedule for 2017 and beyond. SpaceX wants both to land on robotic platforms.

  • Carolyn Briggs