SpaceX reuses rocket from historic astronaut mission to launch satellite


SpaceX reuses rocket from historic astronaut mission to launch satellite

The rocket is slated to take off from Florida's Cape Canaveral Air Force Station between 5 pm and 8:55 pm ET.Inside the bulbous nose cone at the ro

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The rocket is slated to take off from Florida’s Cape Canaveral Air Force Station between 5 pm and 8:55 pm ET.

Inside the bulbous nose cone at the rocket’s tip is a communications satellite that belongs to the South Korean military. SpaceX said it will end the webcast of the launch before the satellite is deployed, something the company frequently does when taking sensitive national security-related cargo to space.

But the company will show its attempt to recover the first-stage booster, the bottom-most portion of the rocket equipped with nine massive engines that provide the Falcon 9 rocket’s initial thrust at liftoff. The rocket booster SpaceX will use for Monday’s mission was previously used on SpaceX’s first-ever mission with humans on board.

SpaceX’s Falcon 9 rocket is the only launch vehicle in the world that features a reusable first-stage booster. For years, the company has routinely recovered the boosters: After the first-stage spends most of its fuel, it detaches from the rocket’s second stage and then steers itself back to an upright landing on seafaring platforms or a ground pad. The second, non-reusable stage of the rocket then fires up its own engine to finish off the mission.
Recapturing, refurbishing and reflying rocket hardware saves SpaceX money, the company says, and it’s at the core of CEO Elon Musk’s mission to drive down the cost of launching satellites — or people — into outer space. The company’s success in developing reusable rocket technology upended a fairly uncompetitive industry, and many of its competitors, such as legacy rocket builder United Launch Alliance and newcomer Blue Origin, are attempting to create reusable vehicles of their own.
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SpaceX has flown a single rocket booster up to five times, and Musk has said the latest version of the Falcon 9 first-stage can fly up to 10 times with minimal repairs needed between launches.

During Monday’s mission, the first-stage booster will fire its engines for about two and a half minutes before breaking off and steering itself back toward one of the company’s remote-controlled platforms, called “Just Read the Instructions.” (The name comes from one of Musk’s favorite sci-fi books.) The whole thing will take about eight and a half minutes.
SpaceX said the South Korean satellite, dubbed Anasis II and built by European aerospace company Airbus, will deploy from the rocket’s second stage about half an hour after takeoff.
The satellite was slated to launch last week, but SpaceX delayed the mission in order to inspect the rocket’s second stage, the company said in a tweet.