Earlier it was reported that the Falcon 9 rocket with twice used the first stage, launched into orbit from 64 satellite.
While the Dragon capsule is now on its way to the ISS, the rocket's spent first stage rocket failed to land properly at its designated "Landing Zone 1" pad along the Cape Canaveral coast. "Sent the ship to catch it", he wrote. "Appears to be undamaged & is transmitting data".
'Engines stabilized rocket spin just in time, enabling an intact landing in water!' Musk tweeted.
SpaceX spokesperson John Insprucker said that the team will use the telemetry from the first-stage booster to find out the reason behind the failed landing.
Despite the landing, the mission successfully placed in orbit its Dragon uncrewed cargo spacecraft.
SpaceX broke its 2017 record of 18 rocket launches December 3, launching 64 small satellites into low-Earth orbit for Seattle aerospace outfit Spaceflight Industries Inc. The rocket was loaded with supplies, science experiments and food for the astronauts living there. This mission is NASA's 16th mission of SpaceX, which is part of a long-term contract to deliver supplies in space.
The Dragon spacecraft, carrying almost 3 tons of science and supplies, is scheduled to rendezvous with the International Space Station on Saturday. Instead of landing at SpaceX's designated landing pad, it ended up submerging in the Atlantic Ocean - just off the Florida coast.
The rocket launched Wednesday was brand new and it is not clear yet what went wrong with the grid fin.