China has launched the communication satellite on a Long March rocket which is scheduled for the moon; it will be traveling about 280,000 miles to orbit around the moon. This lunar orbiter is the first step of China and to be the first country that will be placing the lander on the far side of the moon.
The communication relay satellite will be moving around the orbit which is present around the moon. The orbiter name is Queqiao, and it translates as Magpie Bridge. It is a reference to the birds that are present in the Chinese folktale, and they form a bridge once per year to unite two separated lovers. The Queqiao orbiter will act as the link between the Chang’e-4 lunar lander which is scheduled to land on the far side of the moon later this year and the communication stations on Earth.
The moon rotates in the same side which always faces the Earth because it takes the amount the time for the moon and to rotate on the axis is the same amount of time, and it takes to make the full orbit which is present around the Earth. This process is known as tidal locking which means that the Chang’e-4 lander on the far side of the moon and it will never be able to make the direct radio contact with Earth. The lender will on the Queqiao communications relay satellite in orbit to pass the messages around the moon.
The orbiter is also carrying an antenna which was jointly developed with the Netherlands Institute for Radio Astronomy. This will deploy in the orbit which is nearly 40,000 miles behind the moon; the antenna will help in studying star formation which took place after the Big Bang by looking at the low-frequency signals which are hard to detect the same from the Earth.