A mini-moon the size of a bus is orbiting Earth in its final days and won't reappear until 2055.
New research has overturned the theory that the Moon was formed from debris from Earth and the planet Theia.
The tides that occur abnormally, more eclipses and harder to launch spacecraft may be a consequence when many moons orbit the Earth.
According to National Geographic magazine, our Earth may not only have one
The moon is a quiet and barren satellite of the earth. But long ago, there were volcanoes on the Moon.