India made history last month as the first country to land near the moon's south pole. But several days after they were set to wake up, the Chandrayaan-3 moon lander and its sidekick lunar rover remain fast asleep.

And now it seems like they may be dead for good.

The robots went to sleep in early September – when night set in on the moon and their batteries drained.


The next lunar day started on September 22, and the Indian Space Research Organisation hoped the two spacecraft, which run on solar power, would reawaken that day as the sun rose on the moon and its solar panels recharged.

Unfortunately, the Vikram lander and Pragyan rover didn't respond to mission control's message.

Additional attempts to wake them up on Monday were unsuccessful, and scientists told the BBC that the chances of the historic lander reawakening are "dimming with each passing hour."

It was always unlikely that the two robots would withstand the moon's elements.

The technology on both the lander and rover weren't designed to withstand nighttime temperatures on the moon, The New York Times reported, which can reach as low as -334 degrees Fahrenheit, according to NASA.

This article was originally published by Business Insider.