China's Retrieved Lunar Samples From Chang’e 5 Probe Weigh Less Than Targeted
China's Retrieved Lunar Samples From Chang’e-5 Probe Weigh Less Than Targeted
China is still open to cooperating with all nations in studying the Moon samples, including the United States.
By Reuters | Updated: 19 January 2021 12:47 IST
Pei Zhaoyu, spokesperson for Chang’e-5 Mission, introduces the reentry module which carried moon sample
The probe stopped taking samples after just 12 hours
China is still open to cooperating with all nations in studying samples
China has not yet received any access request for samples
Lunar rocks retrieved by a historic Chinese mission to the Moon weighed less than initially targeted, but China is still willing to study the samples with foreign scientists, the mission's spokesman said on Monday.
China became the third country ever to secure lunar samples when its unmanned Chang'e-5 probe, named after the mythical Moon goddess, brought back 1.731 kg (3.8 lb) of samples last month, falling short of the 2 kg (4.4 lb) planned.
The probe had estimated the lunar rocks to have a density of 1.6 grams per cubic millimetre, based on data from past missions by other countries, said Pei Zhaoyu, the mission spokesman.
Going by that figure, the probe stopped taking samples after just 12 hours, apparently assessing that the target had been reached.
"However, from tests, the actual density might not be that high," Pei told reporters. "We originally planned to use 22 hours to complete the work of surface sampling, but, in fact, we stopped after 12 hours."
But China is still open to cooperating with all nations in studying the samples, he said, including the United States.