Lunar Orbiters Built In Colorado Launched Into Space
(CBS4) - Two lunar orbiters were launched into space Saturday morning.
The unmanned probes are part of NASA's GRAIL program. They were built by Lockheed Martin in Jefferson County.
The probes are designed to map out the moon's surface in unprecedented detail.
Even though they were launched on the same day, they will land on the moon a day apart.
