Ever since Newton first put forth his theory of universal gravitation, it's been accepted that the same forces governing gravitation here on Earth also govern motion and formation of the planets, ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

Fundamental physics faces a stubborn paradox: the current impossibility of reconciling the rules of the quantum world with those of gravity, despite a century of efforts. This theoretical divergence ...

There are four fundamental forces that describe every interaction in nature: electromagnetism, the weak force, the strong force and gravity. While gravity, the mutual attraction that brings objects ...

The Universe, as we know it, has a fundamental flaw staring us right in our faces, letting us know that our knowledge is incomplete. The four fundamental forces are described by two different and ...

Matter particles are only one part of the recipe for everything students see around them. The particles in matter must interact; otherwise the universe would just be one big collection of quarks and ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. Time feels like the most basic feature of reality. Seconds tick, days pass ...