Mars Science Laboratory mission is part of NASA\’s Mars Exploration Program, a long-term effort of robotic exploration of the red planet. Curiosity rover was designed to assess whether Mars ever had an environment able to support small life forms called microbes. This robotic rover exploring Gale Crater on Mars. MSL rover, Curiosity, landed on Mars and began operations on August 6, 2012. The rover\’s primary mission runs for about one Mars year, through June 25, 2014.

credit: NASA                    credit: Paul Hammond

Solar System includes the Sun together with the eight planets and their moons, the dwarf planets (Eris, Pluto, and Ceres), the asteroids, comets and other celestial bodies that orbit the sun. Pluto, known as the 9th planet, it is no longer recognised as one of the planets in the solar system. The four planets closest to the sun, Mercury, Venus, Earth, and Mars, are called the terrestrial planets because they have solid rocky surfaces. The four large planets beyond the orbit of Mars, Jupiter, Saturn, Uranus, and Neptune, are called the gas giants. Solar comes from a Latin word SOL meaning sun. The solar system was formed about 4.6 billion years ago.

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Mercury  (Diameter: 4879.4 km)

Venus  (Diameter: 12103.6 km)

Earth (Diameter: 12742 km)

Mars  (Diameter: 6779 km)

Jupiter  (Diameter: 139822 km)

Saturn  (Diameter: 116464 km)

Uranus  (Diameter: 50724 km)

Neptune  (Diameter: 49244 km)

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credit: edwardyanquen

Amazing pictures of our planet from the perspective of an orbiting satellites. Earth is the third planet of solar system known for having an atmosphere containing free oxygen, oceans of liquid water on its surface, life. Solar system consits of planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Earth is the fifth largest of the planets in the solar system. The Earth consists of a gaseous atmosphere, the hydrosphere, the lithosphere, mantle, and core.The 71 percent of Earth’s surface is covered by water.

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