TitleThe Hitchhiker's Guide to the Galaxy2018-02-09 15:45
Writer Level 10

Last Tuesday night, my colleague said that he spotted the final burn stage of the SpaceX rocket Falcon Heavy, which blasted into orbit earlier in the day from Florida. I guess there are a few who also watched the wonder of the space event. what is more interesting is that SpaceX landed the boosters successfully after the launching the payload, a Tesla roadster. If you reuse the rocket many times, you can save the money to build another ones, which makes the SpaceX mission cost-effective. Mars exploration seems to be closer than ever.

The twin boosters from SpaceX's Falcon Heavy make a

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