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TOKYO — Japan’s first moon lander has survived a third freezing lunar night, Japan’s space agency said Wednesday after receiving an image from the device three months after it landed on the moon.
The Japan Aerospace Exploration Agency said the lunar probe responded to a signal from the earth Tuesday night, confirming it has survived another weekslong lunar night.
Temperatures can fall to minus 170 degrees Celsius during a lunar night and rise to around 100 Celsius during a lunar day.
The probe, Smart Lander for Investing Moon, or SLIM, reached the lunar surface on Jan. 20, making Japan the fifth country to successfully place a probe on the moon.
SLIM landed the wrong way up with its solar panels initially unable to see the sun, and had to be turned off within hours, but powered on when the sun rose eight days later.
SLIM, which was tasked with testing Japan’s pinpoint landing technology and collecting geological data and images, was not designed to survive lunar nights.
JAXA said on the social media platform X that SLIM’s key functions are still working despite repeated harsh cycles of temperature changes. The agency said it plans to closely monitor the lander’s deterioration.
Scientists are hoping to find clues about the origin of the moon by comparing the mineral compositions of moon rocks and those of Earth.
The message from SLIM came days after NASA restored contact with Voyager 1, the farthest space probe from Earth, which had been sending garbled data back for months.
An U.S. lunar probe developed by a private space company announced termination of its operation a month after its February landing, while an Indian moon lander failed to establish communication after touchdown in 2023.
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