The questions kids ask about science aren't always easy to answer. Sometimes, their little brains can lead to big places adults forget to explore. With that in mind, we've started a new series called ...

The answer here is patience. Within a few days, the moon slips further along its orbit, and a tiny sliver of light appears.

Both the United States and China are working to put their astronauts on the moon in the next few years, with NASA's acting ...