SpaceX Falcon 9 airborne - Sjekk oppdatering kl 1415

Oppdatering:
The American SpaceX firm says its experiment to bring part
of its Falcon rocket down to a soft landing on a floating sea
platform did not work.

The vehicle was launched on a mission to send a cargo 

capsule to the International Space Station.

But once the first-stage of the rocket completed its part of t

his task, it tried to make a controlled return.

The company CEO Elon Musk tweeted that the booster hit 

the platform hard.

"Close, but no cigar," he added. "Bodes well for the future 

tho'. Ship itself is fine. Some of the support equipment on 

the deck will need to be replaced." And he continued: 

"Didn't get good landing/impact video. Pitch dark and foggy. 

 Will piece it together from telemetry and... actual pieces."

The SpaceX Falcon 9 rocket on the launch pad at Cape Canaveral, Florida, on January 6, 2015.

Story highlights

• Previous launch was scrubbed due to a technical problem with the second stage
• The "Dragon" capsule will carry supplies to the International Space Station
•  Falcon 9 lifts off as scheduled

(CNN)[Breaking news update, posted at 4:55 a.m. ET]

Space X's Falcon 9 rocket lifted off as scheduled early Saturday from Cape Canaveral, Florida. It will bring supplies to the International Space Station, and its 14-story-tall booster will attempt to make a historic soft landing on a platform in the ocean.

[Previous story, posted at 4:45 a.m. ET]

(CNN) -- Space X steps back up to the plate Saturday to take another crack at making history -- not by what goes up, but by how it comes back down.

Hopefully, some time after its rocket's launch, the first stage, which is 14 stories tall, will land gingerly and on its feet.

Normally, once it has vaulted the rest of the rocket into space, it falls back into the ocean as, basically, garbage. That has been compared to throwing away a Boeing 747 passenger jet after it makes one transatlantic flight.

But SpaceX is determined to change the practice to save millions in costs. Instead of losing the rocket, the company aims to reuse it.

After Saturday's launch, the Falcon 9 rocket's booster will turn around after separating from the second stage and try to land on its feet on a platform in the ocean.

The company logo "X" marks the spot in the middle of a bull's eye on the black landing pad of the "spaceport drone ship" that autonomously plows through the water.

Falcon 9 landing site.

The originally planned launch on Tuesday was scrubbed due to technical issues that turned up in the rocket's second stage. The Falcon 9 is a two-stage rocket.

Scratching a launch time is routine for the space industry, sometimes due to weather, sometimes out of caution.

As Space X founder Elon Musk said when a different model rocket self-detonated as a safety measure during a soft-landing test in August, "Rockets are tricky."