China's space agency has posted a photo of a lunar rover making tracks on the surface shortly after leaving a spacecraft that had made the first-ever landing on the moon's far side. The information given by this probe is significant as till date all the manned and unmanned flights to moon have landed on the side which faces the earth but this Chang'e-4 is exploring the far side which is both rugged and unexplored. The Chinese mission is the first to the far side, sometimes called the dark side because it is relatively unknown.
To control the cost of the Chang'e-4 mission, the relay satellite was created to be relatively small, weighing about 400 kg.
Image of the Yutu-2 rover disembarking from the Chang'e-4 mission's lander.
Having barely landed on the lunar surface, Chang'e-4 transmitted its first images.
The concept of deploying a relay satellite in the halo orbit was first put forward by US space experts in the 1960s, but was realized by Chinese space engineers.
To promote public interest in space exploration, the China National Space Administration invited people to write down their wishes for lunar and space exploration, and the relay satellite carries the names of tens of thousands of participants and their messages.
Other scientific objectives include measuring the chemical composition of lunar rocks and regolith, measuring lunar surface temperatures, studying cosmic rays, and observing the solar corona to learn more about the evolution and transport of Coronal Mass Ejections (CME) between the Sun and the Earth.
The South Pole of the Moon is the area where all the future commercial and science sites are likely to be.
Researchers also hope to conduct low-frequency radio observations of the cosmos from the far side of the Moon, where atmospheric interference and radio signals from Earth will not be an issue.
China's lunar exploration programme, named after moon goddess Chang'e, began in 2004, and has included orbiting and landing a probe on the near side of the moon, and bringing samples back to Earth.
The pioneering landing highlights China's ambitions to rival the U.S., Russian Federation and Europe in space.
Chinese rover charges gadgets in instigating moon missions.