Relier Pairs Matching Solar SystemVersion en ligne Third Grade, Social Science, Chapter 5, ESL par Mikaela Parenti 1 2 3 4 5 6 7 8 The biggest planet. It has almost 70 satellites. This planet looks blue because of the methane gas in the atmosphere. The only planet that has rings we can easily see. The planet nearest to the Sun, it is the smallest planet in the Solar System. It’s surface is covered in a mineral called iron oxide. This makes it look red. It has a dense atmosphere that retains the heat from the sun. It is the warmest planet. The planet furthest from the sun. It is dark and cold. It is unique because it is the only planet that has the right conditions for life to exist. We live here.