Do You Know the Space

Mercury is the planet nearest to the Sun. It is very small and has a very hot surface during the day and a very cold surface at night because it has almost no atmosphere.

The distance from the Earth to the Moon changes. The closest distance is about 222,000 miles, and the farthest distance is about 253,000 miles. It takes light from the Moon about 1.3 seconds to reach the Earth.

The distance from the Earth to the Sun is about 93,000,000 miles. This distance is also called an astronomical unit (AU), which is used to measure distances in the solar system.

There is a unit of measurement called a light year. One light year is the distance that light travels in one year, which is about 5,880,000,000,000 miles. Scientists use it to measure distances to stars and galaxies.

The nearest star to the Earth after the Sun is Proxima Centauri. It is about 4.2 light years away. Even though it is the closest star, it is so far that light from this star takes more than four years to reach us.