Japanese space agency JAXA's SLIM spacecraft landed on the moon upside down on January 30. Lander entered a coma state, and may not survive the lunar night.

Experts worry that the extreme temperatures and prolonged darkness will drain the lander's batteries, preventing it from using its solar panels to recharge itself. "We are aware of the difficulties that the moonlit night presents to us," said a spokesman for the Japanese space agency. The lunar night lasts about two dry weeks on Earth, when temperatures can reach 93 degrees below zero.