As the countdown to the year's first total lunar eclipse begins, here's what to know about the difference between a lunar ...

You should never watch a partial or annular solar eclipse with the naked eye. A solar eclipse is a beautiful ...

Earth’s shadow will block most of the light that illuminates the lunar surface, creating what is known as a blood moon.

With predicted highs around 55 and 68 degrees on Thursday and Friday, respectively, viewers won't be unbearably cold. Normal ...

The second shadow in an eclipse is known as the penumbra (pronounced peh NUM bruh). This partial outer shadow is lighter than the umbra and gets larger as it goes away from the sun. Lunar ...