SpaceX has completed a record breaking launch. Elon Musk¡¯s space firm launched its Falcon 9 rocket to deliver Inmarsat-5 F4, a commercial communications satellite. The payload was so heavy (13,448lbs) and going into such a high orbit (22,000 miles) that the Falcon 9 rocket won't have enough propellant left to land, SpaceX says. The payload was so heavy (13,448lbs) and going into such a high orbit (22,000 miles) that the Falcon 9 rocket won't have enough propellant left to land, SpaceX says. It launched at 7:21 p.m. EDT.SpaceX is targeting launch of Inmarsat-5 F4 from historic Launch Complex 39A (LC-39A) at NASA¡¯s Kennedy Space Center in Florida. The 49-minute launch window opens on Monday, May 15, at 7:21 p.m. EDT, or 23:
1. What do you know about SpaceX?
2. Who is Elon Musk?
3. What makes the event historic?