A long-unsolved case of geological assault might now be resolved, thanks to the efforts of two University graduates. For years, geologists have been mystified by the formation of the Rocky Mountains, ...

A recent theory has emerged suggesting that the answer to Mercury’s unusually large metallic core may lie in the early history of our solar system. This theory proposes that a soft collision between ...

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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

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 ...

Astronomers announced today that a mystery object orbiting a star 170 light-years from Earth might have formed from the collision and merger of two protoplanets. The object, known as 2M1207B, has ...

After studying the chemical makeup of lunar rocks, scientists say they have found new evidence that disproves one of the leading theories of how the Moon formed. The evidence hinges on the presence of ...