Powerful solar flare activity is forecast for Monday which may interfere with short-wave communications, Russian scientists said after three flares were observed on the sun on Sunday.
India's space agency made final preparations on Friday for the launch of a rocket that will attempt to land a robotic rover on the moon's south pole, a first in space exploration.
A rocket engine exploded during a test in Japan on Friday but there were no injuries, an official at Japan's Education, Science and Technology Ministry said.