Chandrayaan-3: Hopes of moon lander reawakening dim as India awaits signal
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Technology
Space agency said it was trying to contact the lander and rover
(Web Desk) - Chances of India's moon lander waking up after a freezing cold lunar night are "dimming with each passing hour", space scientists from the country have told the BBC.
But they said that they would keep trying until the end of the lunar day.
A day and night on the moon each last just over 14 earth days.
On Friday, space agency Isro said it was trying to contact the lander and rover after a new lunar day began, but had not received any signals.
The lander called Vikram, carrying the Pragyaan rover in its belly, touched down near the Moon's little-explored south pole in August. They spent two weeks gathering data and images, after which they were put into 'sleep mode' at lunar nightfall.
The Indian Space Research Organisation (Isro) had said that it hoped the batteries would recharge and the modules would reawaken when the lunar Sun rose around 22 September.
On Friday, Isro posted on X (formerly Twitter) that "efforts to establish communication with the Vikram lander and Pragyaan rover will continue". There has been no official update since then.
On Monday morning, former Isro chief AS Kiran Kumar told the BBC that "chances of reawakening are dimming with each passing hour".
"The lander and rover have so many components which may not have survived the frigid temperatures on the Moon," he said, adding that temperatures near the lunar south pole are known to plunge to -200C to -250C (-328F to -418F) at night.
"Unless the transmitter on the lander comes on, we have no connectivity. It has to tell us that it's alive. Even if all other sub-systems work, we have no way of knowing that," he added.
An Isro spokesman added that efforts to contact the lander and rover were continuing.