It's one small step for robots.
In the wake of a scrubbed NASA shuttle mission to the International Space Station, the space agency has decided to send an unmanned rocket to the moon THursday. The timing for the moon mission couldn't be set until NASA knew whether Endeavor's plans would go forward.
The robotic moon probes will hunt for hidden ice. The mission will cost $583 million. NASA has three split-second times to try to launch the Atlas V rocket carrying the two lunar probes. They are at 5:12 p.m., 5:22 p.m., and 5:32 p.m. EDT.
NASA spokeswoman Ashley Edwards said the weather forecast is good for launch.