China prepares to land on far side of moon

BEIJING — China was preparing to launch a groundbreaking mission early Saturday to softland a spacecraft on the largely unexplored far side of the moon, demonstrating its growing ambitions as a space power to rival Russia, the European Union and U.S.

With its Chang’e 4 mission, China hopes to be the first country to ever successfully undertake such a landing.

The moon’s far side is also known as the dark side because it faces away from Earth and remains comparatively unknown, with a different composition from sites on the near side, where previous missions have landed.

If successful, the mission scheduled to blast off aboard a Long March 3B rocket will propel the Chinese space program to a leading position in one of the most important areas of lunar exploration.

China landed its Yutu, or “Jade Rabbit.” rover on the moon five years ago and plans to send its Chang’e 5 probe there next year and have it return to Earth with samples — the first time that will have been done since 1976. A crewed lunar mission is also under consideration.

Chang’e 4 is also a lander-rover combination and will explore both above and below the lunar surface after arriving at the South Pole-aitken basin’s Von Karman crater following a 27-day journey.

It will also perform radio-astronomical studies that, because the far side always faces away from Earth, will be “free from interference from our planet’s ionosphere, human-made radio frequencies and auroral radiation noise,” space industry expert Leonard David wrote on the website Space.com.

It may also carry plant seeds and silkworm eggs, according to the official Xinhua News Agency.

Chang’e is the goddess of the moon in Chinese mythology.