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In Depth | Sun – NASA Solar System Exploration
The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.

The Sun By the Numbers – NASA Solar System Exploration
The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – in its orbit.

In Depth | Our Solar System - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.

Planet Compare - NASA Solar System Exploration
NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.

In Depth | Earth – NASA Solar System Exploration
Our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface.

Saturn - NASA Solar System Exploration
One Way Light Time to the Sun. Loading... Length of Year. 10,759 Earth Days. Planet Type. Gas Giant. Distance from Sun. Loading... mi km. One Way Light Time to the Sun. Loading... Length of Year. 10,731 Earth Days. Planet Type. Gas Giant. Distance from Sun. Loading... mi km. One Way Light Time to the Sun. Loading... Length of Year.

The Structured Sun - NASA Solar System Exploration
organize the anatomy of the sun around the core and shells surrounding the core. These shells are referred to as the radiative layer (or zone), the convection layer, and the photosphere, which is the surface “layer” that we are able to observe.

In Depth | Mercury – NASA Solar System Exploration
The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth's Moon. From the surface of Mercury, the Sun would appear more than three times as large as it does when viewed from Earth, and the sunlight would be as much as seven times brighter.

10 Need-to-Know Things About Saturn - NASA Solar System Exploration
Saturn is the sixth planet from our Sun (a star) and orbits at a distance of about 886 million miles (1.4 billion kilometers) from the Sun.

10 Need-to-Know Things About Neptune - NASA Solar System Exploration
Neptune orbits our Sun, a star, and is the eighth planet from the Sun at a distance of about 2.8 billion miles (4.5 billion kilometers).

         

 

 

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