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- 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
- Sun 3D Model - NASA Solar System Exploration
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- RPS 3D Viewer - 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
- Mars By the Numbers – NASA Solar System Exploration
Mars is the fourth planet from the Sun, and the seventh largest It’s the only planet we know of inhabited entirely by robots
- In Depth | 1P Halley – NASA Solar System Exploration
In 1986, the European spacecraft Giotto became one of the first spacecraft ever to encounter and photograph the nucleus of a comet, passing and imaging Halley's nucleus as it receded from the Sun Credit: Halley Multicolor Camera Team, Giotto Project, ESA | More about this image
- Solar System Exploration
The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1 3 million asteroids, and about 3,900 comets
- In Depth | Ganymede – NASA Solar System Exploration
Length of day About 7 Earth days (7 155) Length of year About 12 Earth years This is the time it takes Jupiter to orbit the Sun Distance from Sun Ganymede is about 665,000 miles (1 07 million kilometers) from Jupiter, which orbits about 484 million miles (778 million kilometers) from the Sun Planet type Moon Surface temperature Daytime surface temperatures range from -297 to -171
- 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
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