Adrian Harvey writes:
The New Zealand based commercial space company Rocket Lab has unveiled their new rocket engine which the media is describing as battery-powered. It still uses fuel, of course, but has an entirely new propulsion cycle which uses electric motors to drive its turbopumps.
To add to the interest over the design, it uses 3D printing for all its primary components. First launch is expected this year, with commercial operations commencing in 2016.
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The man in the promotion video talks about launching to orbit as something easy and the difficult part is the economics. I am very sceptical about this, but I hope that they succeed.