human
How many planets orbit the sun?
assistant
There are 8 planets in our solar system. The first planet is Mercury, which is the closest to the sun. The second planet is Venus, which is the hottest planet in our solar system. The third planet is Earth, which is the only planet known to have life. The fourth planet is Mars, which has a thin atmosphere and can be seen from Earth with a telescope. The fifth planet is Jupiter, which is the largest planet in our solar system. The sixth planet is Saturn, which is the second largest planet in our solar system. The seventh planet is Uranus, which is the third largest planet in our solar system. The eighth planet is Neptune, which is the fourth largest planet in our solar system.