She Took Taylor Swift's Spot As the Youngest Self-Made Female Billionaire. Here's a Look at Lucy Guo's Intense Daily Schedule. Scientists Found 7,000-Year-Old Mummies in the Desert That Don’t Share ...

Few natural wonders inspire as much awe as the northern lights. But what truly causes this celestial dance of color? This video explores the science behind the Aurora Borealis — from charged solar ...