A stunning total solar eclipse will be visible to millions of people across Mexico, the United States and Canada on April 8. Astronomers are encouraging everyone within the path to enjoy this rare ...

Looking too long at the sun can cause permanent damage to the retina. "Eclipse Across America," will air live Monday, April 8, beginning at 2 p.m. ET on ABC, ABC News Live, National Geographic Channel ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A partial solar ...