The colliding particles must have enough energy for the collision to be successful or effective in producing a reaction. The minimum amount of energy for a collision to be successful is called the ...

The giant-impact hypothesis is presented as the leading explanation for the Moon's formation. The Moon's lower iron content, relative to Earth, is cited as evidence supporting the giant-impact theory, ...

The moon did indeed coalesce out of tiny bits of pulverized planet blasted into space by a catastrophic collision 4.5 billion years ago, two new studies suggest. The new research potentially plugs a ...

Despite being our planet's closest neighbour, scientists have been grappling with the mystery of our moon's origin for hundreds of years. Since the 1980s, experts have assumed that our lunar satellite ...