A layer of rock deep inside the Earth's mantle may have resulted in the planet being covered by a sea of lava several kilometres thick more than 3.5 billion years ago, says an Australian researcher.

What if gravity were informed by the way matter was arranged in the universe — and a sign that we were living in a reality composed by a giant computer? In a new paper published in the journal AIP ...

For more than a quarter of a century since its release, 'The Matrix' has fueled modern fears that life is not all it seems. But according to a scientist, the classic movie's premise may not be ...