A total solar eclipse will be visible from Texas to Maine on Monday. This cosmic event occurs when the Earth, sun, and moon align perfectly. One diagram shows how a total solar eclipse works, and why ...

For the past five hundred years, we’ve been looking out at the universe and assuming that we, with our little planet and our little solar system, were nothing special. And then we sent out a probe to ...

Look up in the sky: It's a bird! It's a plane! No, it's the moon covering the sun. In just a few days a total solar eclipse will arrive in North America, and people are already pretty excited. But, ...

On August 21, around lunchtime in most cities in the United States, a total solar eclipse will pass through the country, moving from Oregon to South Carolina. During a total solar eclipse, the moon ...