But now, a study suggests that this so-called 'collision' theory may not be correct after all. Instead, researchers from Penn State University say that the Earth might have neatly nabbed the moon ...

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 ...

This is called the 'collision theory'. There are four factors that affect the rate (speed) of a chemical reaction: ...

The Giant Impact Hypothesis has long fascinated scientists as the leading explanation for the Moon's formation. Around 4.5 ...

Since the 1980s, the prevailing theory was that the Moon formed as a result of a collision between Earth and the protoplanet Theia in the early history of our planet. However, as reported by the ...

Scientists have a problem with cosmic rays—they produce too many muons at the Earth's surface. Cascades of muons are ...

A key argument supporting the new theory is the Moon's orbit, which is not aligned with Earth's equator. A Moon formed from a planetary collision would likely orbit above the planet's equator ...