Rocket Lab chief Peter Beck said in a statement:

"We are all incredibly excited to get to this point. Our talented team has been preparing for years for this opportunity and we want to do our best to get it right. During this first launch attempt it is possible we will scrub multiple attempts as we wait until we are ready and conditions are favorable."

The company's 56-foot-tall Electron rocket has 3D-printed components and can carry up to around 330-pounds worth of cargo. It can't ferry resupplies to the ISS, but it can launch CubeSats loaded with experiments or small satellites to around 300 to 500 km above our planet's surface.

The upcoming test flight is first of the three that the company wants to do before it starts commercial launches later this year. Rocket Lab already has some clients lined up, including Moon Express, a Google Lunar X Prize contender that wants to land a rover on the moon.