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1. solarsystem.nasa.gov › solar-system › our-solar-systemIn Depth | Our Solar System – NASA Solar System Exploration

   solarsystem.nasa.gov › solar-system › our-solar-system

   • Αποθηκευμένο αντίγραφο

   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.

2. solarsystem.nasa.gov › solar-system › sunIn Depth | Sun – NASA Solar System Exploration

   solarsystem.nasa.gov › solar-system › sun

   • Αποθηκευμένο αντίγραφο

   The Sun is the largest object in our solar system. Its diameter is about 865,000 miles (1.4 million kilometers). Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it.

3. solarsystem.nasa.gov › moons › in-depthIn Depth | Moons - NASA Solar System Exploration

   solarsystem.nasa.gov › moons › in-depth

   • Αποθηκευμένο αντίγραφο

   There are hundreds of moons in our solar system – even asteroids have been found to have small companion moons. Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons.

4. solarsystem.nasa.gov › solar-system-ambassadors › directoryDirectory - NASA Solar System Exploration

   solarsystem.nasa.gov › solar-system-ambassadors › directory

   • Αποθηκευμένο αντίγραφο

   9 Ιαν 2020 · Find and contact your local Solar System Ambassador. There’s at least one in every state! Be sure to read their bio to learn more about them.

5. solarsystem.nasa.gov › planet-comparePlanet Compare – NASA Solar System Exploration

   solarsystem.nasa.gov › planet-compare

   • Αποθηκευμένο αντίγραφο

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

6. solarsystem.nasa.gov › planets › earthIn Depth | Earth - NASA Solar System Exploration

   solarsystem.nasa.gov › planets › earth

   • Αποθηκευμένο αντίγραφο

   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. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.

7. solarsystem.nasa.gov › planets › saturnIn Depth | Saturn - NASA Solar System Exploration

   solarsystem.nasa.gov › planets › saturn

   • Αποθηκευμένο αντίγραφο

   Saturn is the sixth planet from the Sun and the second-largest planet in our solar system. Like fellow gas giant Jupiter, Saturn is a massive ball made mostly of hydrogen and helium. Saturn is not the only planet to have rings, but none are as spectacular or as complex as Saturn's.

8. solarsystem.nasa.gov › asteroids-comets-and-meteors › asteroidsIn Depth | Asteroids - NASA Solar System Exploration

   solarsystem.nasa.gov › asteroids-comets-and-meteors › asteroids

   • Αποθηκευμένο αντίγραφο

   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.

9. solarsystem.nasa.gov › studies › 183Why the Moon is important for Solar System Science

   solarsystem.nasa.gov › studies › 183

   • Αποθηκευμένο αντίγραφο

   24 Οκτ 2024 · This paper outlines the importance of the Moon for Solar System science and in its own right as a critical target for scientific investigation during the next decade of exploration.

10. solarsystem.nasa.gov › planets › in-depthWhat is a Planet? | Planets – NASA Solar System Exploration

    solarsystem.nasa.gov › planets › in-depth

    • Αποθηκευμένο αντίγραφο

    A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.