How SpaceX lands the Falcon 9 rocket

The first-stage successful upright landing of the SpaceX Falcon 9 rocket on Monday, December 21, 2015, at Cape Canaveral.

The successful landing means SpaceX is once again No. 1 in the race to develop reusable rockets, overtaking Blue Origin.

This marks the third attempt of the company to vertically land a rocket, the first on land. The liquid oxygen was chilled to minus 340 degrees Fahrenheit - 40 degrees colder than earlier flights - and the kerosene fuel was cooled to 20 degrees instead of 70 degrees.

SpaceX completed the historic vertical landing of its Falcon 9 rocket on Monday night. The first attempt ended in an explosion, and the booster tipped over the second time. SpaceX founder, CEO and chief designer Elon Musk described it to reporters as a "revolutionary moment".

Creating reusable rockets - is important for lowering the cost of space travel, which could make space tourism and a trip to Mars more feasible.

TIME reports that Monday's launch was the first flight for SpaceX after its rocket disintegrated just minutes after launch in June this year.

SpaceX is one of the several companies contracted by the US space agency NASA to ferry supplies, and, eventually, astronauts to the International Space Station and low-Earth orbit.

On that occasion, an unmanned Falcon-9 broke apart in flames minutes after lifting off from Cape Canaveral, with debris tumbling out of the sky into the Atlantic Ocean.

SpaceX is aiming to revolutionise the rocket industry, which up until now has lost millions of dollars in discarded machinery and valuable rocket parts after each launch.

The company's Falcon 9 rocket failed during a resupply mission to the ISS.

The launch's payload, 11 ORBCOMM satellites destined to join others in the communications company's network, was also successfully deployed with no problems.

Related News: