Jeff Bezos unveils massive reusable rocket that could launch by the end of the decade

After years of secrecy, Blue Origin and Amazon CEO Jeff Bezos has unveiled a new rocket that will one day launch payloads and people into Earth's orbit.

Named after the first US astronaut to orbit Earth, the 'New Glenn' launcher is larger than SpaceX's future Heavy rocket and is set to visit the final frontier by the end of the decade.

The spacecraft come in two stages that are designed with half the power of Nasa's Saturn V launcher, and will bring Blue Origin one-step closer to its goal of 'millions of people living and working in space'.

Both stages are 23-feet in diameter, but the 'New Glenn 3-stage' is 313 feet tall, whereas 'New Glenn 2-stage measures 270-feet.

And each stage lifts off with 3.85 million pounds of thrust from seven BE-4 engines.