Venus
Venus is the second planet from the sun, and is the brightest planet in Earth's nighttime sky. Like Mercury, Venus also has no moons.
Atmosphere: The physical properties of Venus are most similar to that of Earth's. The average surface temperature is 737 K (446* C), which is extremely hot. The atmosphere is mainly made up of carbon dioxide and nitrogen. There are clouds that can be found in the atmosphere that are made up of sulfuric acid. Carbon dioxide takes up a high concentration of Venus's atmosphere, which prevent infrared radiation.
Surface: Venus has a smooth surface due to past volcanic eruptions. The most recent volcanic activity on Venus was over 500 million years ago, which suggests that Venus is still young. There is little evidence of tectonic plate movement on Venus.
Interior: Both size and density of Venus is similar to Earth, so it is theorized Venus' core is similar to Earth's as well. However, scientists have no evidence to support this theory. It is also theorized that Venus has a liquid core. Venus has no magnetic field which is most likely due to its slow rotation rate.
Atmosphere: The physical properties of Venus are most similar to that of Earth's. The average surface temperature is 737 K (446* C), which is extremely hot. The atmosphere is mainly made up of carbon dioxide and nitrogen. There are clouds that can be found in the atmosphere that are made up of sulfuric acid. Carbon dioxide takes up a high concentration of Venus's atmosphere, which prevent infrared radiation.
Surface: Venus has a smooth surface due to past volcanic eruptions. The most recent volcanic activity on Venus was over 500 million years ago, which suggests that Venus is still young. There is little evidence of tectonic plate movement on Venus.
Interior: Both size and density of Venus is similar to Earth, so it is theorized Venus' core is similar to Earth's as well. However, scientists have no evidence to support this theory. It is also theorized that Venus has a liquid core. Venus has no magnetic field which is most likely due to its slow rotation rate.
(Picture from http://www.windows2universe.org/venus/venus.html)