SpaceX has just debuted a more reusable and more powerful version of the Falcon 9 rocket, a huge development that could one day lead to a new future of space travel for mankind. The Falcon 9 rocket sent Bangladesh’s first communications sastellite into orbit after it lifted off from the coast of Florida on Friday.

The launch is a big deal for SpaceX because it moves the company closer to Elon Musk’s dream of launching astronauts for NASA. Those astroanuts would fly on the same Block 5 model of the Falcon 9 rocket that launched on Friday. One day, Musk hopes to launch astronauts all the way to Mars.

Musk also says the enhanced launch vehicle will be reusable, making it far less costly to launch astronauts in the future. The Falcon 9 rocket landed on SpaceX’s sea-going drone ship “Of Course I Still Love You” about 400 miles off the coast of Cape Canaveral.