S. Korean Spaceflight auf Twitter: "These were the previous concepts of KSLV-III & KSLV-IV. Both were heavy launchers. However, it changed due to the development of the Small launch vehicle (SSLV). KSLV-IV will be no longer in development, and KSLV-III changed to GEO-SLV, which can carry 3t to GEO. (name TBD.)… https://t.co/0K5h3Geg5T"

https://twitter.com/Kor_Spaceflight/status/1072164264952029191

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