After running a series of simulations, the researchers found that a significant amount of 'Theian' material - around 2 per cent of Earth's mass - would have entered the lower mantle of the ancient ...

A Golden-Age musical in modern drag, The End plunges viewers several decades into the future, and deep under the earth, to a salt mine where a ludicrously wealthy family has made their home after ...

As it settles into orbit, halfway between Earth and our original moon ... And that's where the real danger comes in. After millions of years, the two moons would collide! The impact would be ...