Why Do We Have Time Zones?
Why Do We Have Time Zones? Time is not same everywhere. When it is noon in New York, for example, it is still 9 a.m. in San Francisco. The s
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Night
What Are Shooting Stars?
If you look up at the sky on a clear night, you may see a “shooting star” flash across the sky, but they are not stars. Shooting stars are b
Why Are Moths Attracted to a Light?
Why Are Moths Attracted to a Light? Scientists tell us that moths are not really attracted to the light itself. When moths fly at night, the
What Are the Northern Lights?
What Are the Northern Lights? People in northern countries sometimes see colorful displays of flickering, glowing light in the night sky. Th
Why Can’t We See the Stars in Daytime?
Why Can’t We See the Stars in Daytime? The stars shine all the time, day and night. We do not see them in daytime because of the glare of