Second chances are rare — especially with the Northern Lights. Here's where and when to see them tonight and tomorrow across ...

Earth's magnetic field protects from solar radiation. It originates from molten core motion. Magnetic north pole moves constantly. Field reversals occurred in the past. The field weakens in some areas ...

Here's a complete guide on how to spot the aurora borealis for two consecutive nights on July 16 and July 17, including when ...

The aurora borealis is expected to be 'quite pleasing to look at' from several locations across the northern United States on ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Watch the pair of amazing time-lapses of the Aurora Borealis from the International Space Station captured by NASA astronaut ...