The discovery of more satellites around a planet to changing atmosphere can be revised with new information.. We really do not know all there is about the planets. Mercury: Venus: Earth: Mars: Jupiter: Saturn: Uranus: Neptune: Pluto: Small Bodies Planet Facts Interesting Planet Facts Mercury – The smallest and fastest planet, it zips around the Sun in only 88 Earth days.. Venus – Venus’ thick atmosphere makes it the hottest planet in our solar system.. Earth – The only planet in our solar system with liquid water on the surface.. Mars – Mars was a wet and warm planet billions of years ago. It might seem a bit like navel-gazing to point out how special Earth is — after all, we live here. Saturn has an impressive ring structure and 19 moons. Despite its small size, Mercury is very dense because it is composed mainly of heavy metals and rock – the main characteristic of terrestrial planets . Jupiter is almost a binary partner to the sun. They all have rings and all of plenty of moons … Cyber Monday 2020 deals: $35 Google Home, $80 Echo Show 2-pack, $449 HP laptop, $179 Chromebook and more Although Earth is covered in oceans of water, Mars could have once hosted seas as well. After the Earth, Mercury is the second densest planet. Similarly, Mars is the Red Planet because the iron oxide on its surface makes it look red from space. The planets are a wonderful example of how scientists slowly accumulate new information and make new conclusions. In 2006, International Astronomical Union (IAU) redefined the term "planet", and Pluto didn't meet all the necessary conditions. Uranus is called the Ice Giant because it has the coldest atmosphere of all the planets. Jupiter is called the Giant Planet because it is the largest planet in the solar system. Use console command: effect add_deposit=d "deposit name" like this: : The outer planets (sometimes called Jovian planets or gas giants) are huge planets swaddled in gas. Planet Profiles. This site provides you with facts about the eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Dwarf planet, body, other than a natural satellite (moon), that orbits the Sun and that is, for practical purposes, smaller than the planet Mercury yet large enough for its own gravity to have rounded its shape substantially. With no planetary features, a planet will have no districts. Mercury is the smallest planet in the solar system with a diameter of 4,879 km and is one of five planets that is visible to the naked eye. Can be quite extensive. Each has a system of orbiting satellites (moons) and rings. Largest planets in our solar system. The Outer (Jovian) Planets. Saturn's rings of ice particles and dust account for its nickname. With each new space probe, much is learned about the planets. General features of Jupiter and Saturn. Some might now say "What's with Pluto?". NASA . 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