SpaceX successfully launched a Falcon 9 rocket Friday at 4:43 p.m. ET from Cape Canaveral, Florida, sending 7,000 pounds of cargo and an inflatable room toward the International Space Station.


But the huge, history-making moment - causing everyone at SpaceX to lose their minds in a roar of applause during a live webcast - was when the company landed a rocket on a robotic ship at sea.At mission control headquarters, everyone began chanting "U-S-A! U-S-A!" after the rocket gently touched down on the ship, inexplicably called "Of Course I Stil Love You."

SpaceX, led by tech entrepreneur Elon Musk, has tried many times to do this, and all of the attempts ended in failure.


But this time it worked, and the feat could change everything.

The 1st stage of the Falcon 9 just landed on our Of Course I Still Love You droneship. Dragon in good orbit pic.twitter.com/SYyUCDZE3k - SpaceX (@SpaceX) April 8, 2016

Why sticking a rocket landing is a huge deal


The Falcon 9 rocket is a very odd bird.Most rockets cost tens or hundreds of millions of dollars, yet are rendered as junk the moment they launch. Instead of being recycled, they crash into the ocean and sink to the bottom after lofting a payload into orbit.

But after delivering Dragon into space, the Falcon 9 tried to land about half of itself on a drone ship in the Atlantic Ocean.

SpaceX attempted this feat in earnest on three separate occasions in the past year, but all of those rockets crashed into a drone ship and exploded.


A fourth SpaceX rocket was equipped to land but never got the chance, since it blew up shortly after launch

Those previous experimental failures didn't inspire much confidence.

In fact, SpaceX said in a press release for one of its launches that "a successful landing is not expected."


Translation: This is really, really hard and we think our rocket will probably explode into bits when it tries to land itself.Still, the incredible consequences of what just happened can't be ignored.

Each Falcon 9 costs about $60 million. That the company can now land even part of that hardware, clean it up, and refuel it for a future launch, is a mind-boggling feat for the space industry.


Practically, Friday's successful landing might soon usher in an era of spaceflight that's radically less expensive

Musk has said that a 100-fold cost reduction of access to space is possible, should his rocket-recycling scheme prove as repeatable and reliable as flying an airplane.

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The company has a long way to go satisfy Musk's extraordinary ambition, but this is a major step forward in that direction.