Why does the sky get dark at night? Don't tell me it's just because the Earth rotates and the sun sets -- what I mean is, with all of its stars and other luminous bodies, why isn't the universe infinitely bright?
WHAT'S INSIDE: FORCES OF NATURE
- Climate & Weather
- Natural Disasters
Chances are you could formulate a reasonably well-informed guess. Why not read the article and get the definitive answer?
A perfect climate means different things to different people. These 10 countries span the globe and offer a wide range of climates to satisfy any taste -- hot, cold or in-between.