Saturday 20 October 2018

China’s space programme aims for dark side of moon

It hopes to become the first country to soft-land a probe on the moon’s far side.

A Long March-4C rocket carrying a relay satellite is launched from south-west China's Xichang Satellite Launch Centre (Cai Yang/Xinhua via AP)
A Long March-4C rocket carrying a relay satellite is launched from south-west China's Xichang Satellite Launch Centre (Cai Yang/Xinhua via AP)

By Associated Press Reporter

China has launched a relay satellite as part of a groundbreaking programme to be the first to land a spacecraft on the far side of the moon later this year.

The satellite, lofted into space aboard a Long March-4C rocket, will facilitate communication between controllers on Earth and the Chang’e 4 mission, the China National Space Administration said on its website.

China hopes to become the first country to soft-land a probe on the moon’s far side, also known as the dark side because it faces away from Earth and is comparatively unknown.

The satellite, named Queqiao or Magpie Bridge after an ancient Chinese folk tale, was launched from the Xichang Satellite Launch Centre in the south-western province of Sichuan, the space administration said.

The launch is a “key step” but the satellite’s mission must still overcome challenges including making multiple adjustments to its orbit, “braking” near the moon and using lunar gravity to its advantage, project manager Zhang Lihua was quoted as saying by the official Xinhua News Agency.

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The Moon

According to the administration and website space.com, Queqiao was expected to arrive shortly at the Earth-moon Lagrange point 2, a gravitationally stable spot located 64,000 kilometres (40,000 miles) beyond the far side of the moon.

Without such a communications relay link, spacecraft on the far side would have to “send their signals through the moon’s rocky bulk”, space.com said.

China previously landed its Jade Rabbit rover on the moon and plans to land its Chang’e 5 probe there next year and have it return to Earth with samples – the first time that has been done since 1976.

It conducted its first crewed space mission in 2003, making it only the third country after Russia and the US to do so, and has put two space stations into orbit.

Upcoming missions include the launch of the 20-ton core module for the still orbiting Tiangong 2 station, along with specialised components for a 60-ton station that is due to come online in 2022 and a Mars rover planned for the mid-2020s.

However, the failure of China’s Long March 5 rocket last year was seen as dealing a rare setback to the highly successful space programme, delaying some missions and offering rival India a chance to move ahead in the space rankings.

Press Association

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