Where the Earth’s core meets the mantle, there are two giant regions that have baffled geologists for fifty years. A new ...

A challenging brainteaser tests critical thinking with a math problem of finding the missing value: 3 - 3 x 6 + 2 = ?.

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

In the case of our 'string around the Earth' puzzle, the radius is being increased by 15cm, so we need to know that as a fraction of the original radius. So what is the radius to start with?

International scientists reveal that magma transports gold from the mantle to the surface by means of a sulfur complex.