Blue Ghost's main mission will be research. It will hang out in Earth's orbit for 25 days taking measurements and waiting for the right time to fling itself to the moon. After four days in transit, Blue Ghost will spend 16 days in lunar orbit collecting more data before descending to Mare Crisium, one of the largest basins on the moon.

An illustration of a private U.S. lander on the surface of the moon built by Texas-based company Firefly Aerospace. The company’s Blue Ghost lander is carrying a suite of scientific instruments to the moon, including an experiment to detect and use GPS satellite signals on the lunar surface.

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The two landers rocketed away in the middle of the night from NASA’s Kennedy Space Center, the latest in a stream of private spacecraft aiming for the moon.

Firefly Aerospace's Blue Ghost lunar lander launched at 1:11 a.m. Wednesday from NASA's Kennedy Space Center in Florida on the SpaceX rocket before separating an hour later. The lunar lander — part of a mission known as Blue Ghost Mission 1 or Ghost Riders in the Sky — will spend 45 days in orbit and 14 days on the surface of the moon.

The two robotic lunar landers —one from Firefly Aerospace based near Austin, Texas, and another from the Japanese space company ispace—will use their own small engines for the final maneuvers required to enter orbit around the Moon in the coming months.

Merritt Island, United States - January 15, 2025 A SpaceX Falcon 9 rocket launches with two commercial lunar landers from Launch Complex-39A at NASA’s Kennedy Space Center, Florida, on Jan. 15, 2025.

SpaceX launched Firefly Aerospace's "blue ghost" alongside a lander from Japan. They didn't intend to launch together.