With two commercial moon landers already on their way, Houston-based Intuitive Machines launched its second robotic lander atop a SpaceX Falcon 9 rocket Wednesday, the centerpiece of a multi-element NASA-sponsored mission to help pave the way for human expeditions.

Intuitive Machines designed and will operate the Athena lunar lander on the company's second voyage to the moon's south pole to hunt for water.

A private company launched another lunar lander Wednesday, aiming to get closer to the moon's south pole this time with a drone that will hop into a jet-black crater that never sees the sun.