2. Venus Venus is the second planet from the Sun. The planet is named after Venus, the Roman goddess of love and beauty. Venus is classified as a terrestrial planet and it is sometimes called Earth's "sister planet“ due to the similar size, gravity, and bulk composition.
3. Venus It has a dense atmosphere, composed chiefly of carbon dioxide, which generates a surface pressure 90 times greater than that on Earth. Venus' atmosphere consists almost entirely (97%) of carbon dioxide, with clouds containing droplets of sulfuric acidalong with compounds of chlorine and fluorine.
4. Venus This massive blanket of carbon dioxide is also responsible for a runaway greenhouse effect that heats the planet's surface to an average temperature of 467°C (872°F) – hot enough to melt lead. A Venusian day lasts 243 days, and a year is 224 days. That means that the day on Venus is 19 days longer than the year.
6. Jupiter Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. Jupiter has a vast range of temperatures. The outermost layers are exposed to the near absolute zero temperature of space, while the core of the planet has high temperatures because of the intense pressure of the entire planet bearing down at it.
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8. Saturn Saturn is the sixth planet from the sun. Saturn takes 10,832 Earth days (29.66 Earth years) to go around the Sun.
9. Saturn From a distance, in visible light observations, Saturn's atmosphere looks more boring than Jupiter. Saturn has cloud bands in its atmosphere, but they're pale orange and faded. This orange color is because Saturn has more sulfur in its atmosphere. In addition to the sulfur in Saturn's upper atmosphere, there are also quantities of nitrogen and oxygen.
10. Saturn The temperatures below Saturn's clouds are much higher than those at the top of the clouds. The planet gives off about 2 1/2 times as much heat as it receives from the Sun. Many astronomers believe that much of Saturn's internal heat comes from energy generated by the slow sinking of helium through the liquid hydrogen in the planet's interior.
