Rocket Lab is celebrating 20 years in operation this week. 

The company has become the fastest in history to launch 50 rockets into space. 

Now valued at over $20billion, Rocket Lab's portfolio includes missions for NASA and the U.S. Air Force Space Command. 

Founder and CEO Sir Peter Beck told Mike Hosking that, 'the company continues to grow really, really strongly, but it always seems like it's going to take a shorter period of time than it really does.'

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