The Falcon Heavy megarocket from SpaceX founder Elon Musk previewed this morning at NASA's Kennedy Space Center in Cape Canaveral, Florida.

"Falcon Heavy at the Cape," crowed Musk in his Twitter post at 1:57 a.m. The team recently completed production on its 400th Merlin 1D engine, which the founder call the latest phase of SpaceX's rocket engine that powers Falcon 9 to space, he Tweeted Thursday.

The Falcon Heavy, which launched from the same NASA pad as the Saturn V Apollo 11 moon rocket, is expected to take off on its maiden voyage in January 2018.

Musk's early-morning tweet showed several views of the new rocket, described as "stunning" by, a space exploration site, which was on hand.

The megarocket would launch at more than twice the weight of the Delta IV Heavy from United Alliance, and carry twice the cargo of the Saturn V. 

Musk's next step:

Launching two humans on board the new megarocket by the end of 2018. 

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.