| Description | Planet |
|---|
| This planet's name is derived from a figure from Greek mythology | |
| This planet is known as Earth's 'sister planet' due to similar size and gravity | |
| This planet has a mass two and a half times the mass of all the other planets in the Solar System combined | |
| This planet was analyzed by NASA's MESSENGER, which discovered water in the form of ice inside craters near the north pole | |
| This planet completes a rotation on its axis fastest, in less than ten hours | |
| This planet has been the farthest planet from the sun since 2006 | |
| This planet's orbit is nearest to circular, with an eccentricity less than 0.01 | |
| This planet was thought by many ancient cultures to be flat | |
| This planet is currently host to five functioning spacecraft: two on the surface and three in orbit | |
| This planet's largest moon is the only one of the Solar System's moons to retain a substantial atmosphere | |
| This planet has the fastest wind speeds, nearing supersonic flow | |
| This planet is home of Olympus Mons, the largest mountain of the Solar System's planets | |
| This planet is home of Olympus Mons, the largest mountain of the Solar System's planets | |
| This planet has the most eccentric orbit, varying its distance to the sun by 14 million miles | |
| This planet moves across the sky faster than any other planet, like its eponymous swift-footed messenger | |
| This planet was analyzed by NASA's MESSENGER, which discovered water in the form of ice inside craters near the north pole | |
| This planet is known as Earth's 'sister planet' due to similar size and gravity | |
| This planet's surface cannot be seen in visible light due to reflective clouds of sulfuric acid enveloping the planet | |
| This planet's orbit is nearest to circular, with an eccentricity less than 0.01 | |
| This planet is the densest | |
| This planet's astronomical symbol consists of a cross circumscribed by a circle | |
| This planet was thought by many ancient cultures to be flat | |
| This planet has only two moons | |
| This planet is currently host to five functioning spacecraft: two on the surface and three in orbit | |
| This planet has a mass two and a half times the mass of all the other planets in the Solar System combined | |
| This planet contains the Great Red Spot, a persistent anticyclonic storm located 22° south of the equator | |
| This planet completes a rotation on its axis fastest, in less than ten hours | |
| This planet is named after the Roman god of agriculture | |
| This planet's largest moon is the only one of the Solar System's moons to retain a substantial atmosphere | |
| This planet's rings are the most massive | |
| This planet's name is derived from a figure from Greek mythology | |
| This planet was originally named 'Georgium Sidus' by its discoverer, William Herschel, after King George III | |
| This planet has an axis of rotation approximately parallel to the plane of the Solar System | |
| This planet was found by mathematical prediction, rather than empirical observation | |
| This planet has been the farthest planet from the sun since 2006 | |
| This planet has the fastest wind speeds, nearing supersonic flow | |
| This planet has been the farthest planet from the sun since 2006 | |
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Quiz Updated Sep 12, 2014
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