Did Earth Have a Twin That Formed the Moon? :globe_showing_Europe-Africa: Billions of years ago, our planet may have collided ...

Boffins have been puzzled for decades about two strange blots under our planet, but now some new research could finally be ...

LONDON — Find a globe in your local library or classroom and try this: Close the eyes, spin it and drop a finger randomly on its curved, glossy surface. You’re likely to pinpoint a spot in the water, ...