A very rare treat is about to grace Earth's night skies.

The northern lights may be visible as far south as New York and other parts of the northeast such as Vermont, New Hampshire ...

Hawaii, with its proximity to the equator, gets a relatively consistent amount of sun year-round, making “saving” daylight ...

Earth was so cold at the time that the oceans were frozen all the way to the equator, and life only existed ... How sea level rise could drench the world map. It's not clear what triggered those ...