Do you know which is the hottest planet in the solar system? As a kid, your child might be well aware of the names of the eight different planets in the solar system, but in order to take their knowledge to a new level, they should start knowing more details related to these planets. Did you know that Mercury is not the hottest planet in the solar system as a lot of people think? That is exactly what we are coming here through this video to inform you with. A lot of people think that Mercury is the hottest planet in the solar system because it is actually the closest to the sun, but that is not the case, because Venus which is the second planet from the sun has a temperature maintained at 462 degrees Celsius and thus it is the hottest planet in the solar system. Now you might be asking yourself why would Venus be hotter than Mercury even though it is not close to the sun as Mercury is. Venus has an atmosphere that is made of carbon dioxide and it also has clouds of acid inside the atmosphere, this thick atmosphere makes the surface of Venus hotter than Mercury and hotter than all the other planets which are found in our solar system because the heat does not escape back into space; this process is called “Greenhouse Effect”.