The Pathfinder mission sprung a surprise towards end August when the roving vehicle revealed at least two different kinds of rocks on the planet. Neither resembles the Earth's volcanic rocks or
If a comet merely ten-thousandth the size of Hale-Bopp strikes the Earth, it would create an explosion ten times as powerful as all the nuclear weapons in existence at the height of the Cold War,
Plans are being finalised for the world's largest radio telescope by astronomers from India, Australia, Canada and three other countries. The telescope
The latest findings of the spacecraft Galileo, which has been providing valuable information about Jupiter and its satellites, relate to moon Callisto. The satellite shows no evidence of an internal