Learn about the Hubble Space Telescope's incredible reach and why a block of lead on Venus would melt like ice on Earth. Join us as we delve into the wonders of our celestial neighborhood, revealing ...

The sun is the star at the center of our solar system. It's the largest, brightest and most massive object in the solar system, and it provides the light and heat that life on Earth depends on.

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...