The rocket launch was part of Seoul's efforts to build a space-based surveillance capability and bolster its defence posture amid continued threats from Pyongyang.
Information received so far shows no evidence of alien life, says new office set up by US Defense Department to track reports of unidentified flying objects.
Sixteen-member panel will focus its inquiry entirely on what the US government calls "unidentified aerial phenomena or UAPs," US space agency says.
Pentagon is committed to determining the origins of what it calls "unidentified aerial phenomena" or UFOs, senior intelligence officials tell lawmakers, but acknowledge many remain beyond the government's ability to explain.
Multiple sightings of unidentified aerial phenomena prompted the Trump administration to order a full report to Congress, which is only months from being released.
The Pentagon says it wrapped up the programme in 2012, but the New York Times has quoted sources as saying that UFO 'episodes' continue to be investigated.
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