It was North Korea's first successful use of a three-stage rocket to put a satellite into orbit.
The three-stage rocket put a satellite into space in what was Pyongyang's first successful test of such technology.
North Korea is already testing a three-stage rocket and will soon have the means to hit Alaska and Hawaii.
Pyongyang used a three-stage rocket to put a satellite into space last year.
North Korea's third nuclear test followed an apparently successful launch in December of a three-stage rocket, seen as a banned test of missile technology.
North Korea's nuclear test - its third - followed its apparently successful launch of a three-stage rocket to put a satellite into orbit in December.
South Korea now plans to develop a fully home-made three-stage rocket.
The nuclear test, North Korea's third, followed its apparently successful launch in December of a three-stage rocket - a move condemned by the UN as a banned test of missile technology.
Pyongyang's state television made no mention of the South Korean launch, but about an hour after liftoff it showed archive footage of North Koreans cheering the North's three-stage rocket from last month.
The visit comes less than a month after North Korea put a satellite into orbit using a three-stage rocket - a move condemned by the US as a banned test of long-range missile technology.
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Last year, as the financing for two new nuclear reactors in North Korea was about to be agreed on by America, South Korea, Japan and others, the North fired a three-stage rocket, unannounced, over Japan.
The delegation's Pyongyang trip comes less than a month after North Korea put a satellite into orbit using a three-stage rocket - a move condemned by the US as a banned test of long-range missile technology.
The players' visit comes at a time of heightened tensions between the US and North Korea over the test and Pyongyang's launch of a three-stage rocket, a move condemned by the UN as a banned test of missile technology.
The visit by the players comes at a time of heightened tensions between the US and North Korea over the test and Pyongyang's launch of a three-stage rocket, a move condemned by the UN as a banned test of missile technology.
She also said South Korea was at "crisis level", following the recent underground test by North Korea of a nuclear device and its launch of a three-stage rocket, both of which were seen as a breach of UN resolutions and condemned as a threat to stability in the region.
I'm hopeful that in the next couple of years we'll be able to achieve full and operable usability of the first stage, which is about three-quarters of the cost of the rocket.
But roughly 11 minutes after liftoff when the Dragon capsule already had separated from the rocket's second stage three of the spacecraft's four clusters of chemically-fueled thrusters failed to turn on.
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