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- 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
- 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 | Moons – NASA Solar System Exploration
Or the planet's gravity might break Phobos apart, creating a thin ring around Mars Earth's Moon Martian Moons Phobos and Deimos Moons of the Giant Planets Jupiter's menagerie of moons includes the largest in the solar system (Ganymede), an ocean moon (Europa) and a volcanic moon (Io)
- In Depth | Our Solar System – NASA Solar System Exploration
The planetary system we call home is located in an outer spiral arm of the Milky Way galaxy 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 Beyond our own solar system, there
- In Depth | Phobos – NASA Solar System Exploration
It orbits Mars three times a day, and is so close to the planet's surface that in some locations on Mars it cannot always be seen Phobos is nearing Mars at a rate of six feet (1 8 meters) every hundred years; at that rate, it will either crash into Mars in 50 million years or break up into a ring
- 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 3D Model – NASA Solar System Exploration
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- In Depth | Ganymede – NASA Solar System Exploration
Jupiter’s moon Ganymede is proving to be a fascinating world Not only is it the largest moon in our solar system, bigger than the planet Mercury and the dwarf planet Pluto, but NASA’s Hubble Space Telescope has found the best evidence yet for an underground saltwater ocean on Ganymede The ocean is thought to have more water than all the water on Earth's surface Ganymede’s ocean is
- In Depth | Asteroids – NASA Solar System Exploration
Asteroids, sometimes called minor planets, are rocky remnants left over from the early formation of our solar system about 4 6 billion years ago The current known asteroid count is: Most of this ancient space rubble can be found orbiting our Sun between Mars and Jupiter within the main asteroid belt Asteroids range in size from Vesta – the largest at about 329 miles (530 kilometers) in
- Mars Science Laboratory: Curiosity Rover - NASA Solar System Exploration
Curiosity’s Mission: Was Mars Ever Habitable? Part of NASA’s Mars Science Laboratory mission, Curiosity is the largest and most capable rover ever sent to Mars Curiosity’s mission is to answer the question: did Mars ever have the right environmental conditions to support small life forms called microbes?
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