He wasn't wrong—the sun is 99.8 percent of the mass of the solar system. But what is that giant ball of fire in the sky? How ...

Our solar system was formed about four and a half billion years ago, from a massive cloud of gas and dust which collapsed on ...

The first solar eclipse ... the-dark art can help kids appreciate this celestial event. One of the most important lessons to teach kids is that looking directly at the sun—even during an eclipse ...

We’ve wondered what powered the Sun for centuries. Early guesses included meteor showers, chemical combustion, and ...

Any eclipse is a fascinating event to observe and provides a glimpse of the celestial mechanics of the solar system. According ... Although the sun is around 400 times larger than the moon ...