CNN’s Rapid Fire revealed that SpaceX founder’s favorite rocket after his own Falcon 9 is Ukrainian Zenith
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(For those who would like to know of the similarities between Zenith and Falcon 9 there is an educated discussion on SpaceX Subreddit)
Zenith Space Launch Vehicle is produced in the city of Dnipro (former Dnipropetrovsk), Ukrane at Yuzhnoe Plant.
The official site of the plant says that there have been 875 successful launches of Zenith vehicle already!