Drag artist Alexis Stone is fueling conspiracy theories that an appearance by Jim Carrey at an award show in Paris isn't actually the actor.

Theorists of consciousness generally focus on sensation – what it's like to, say, experience the color red. Yet what we call the stream of consciousness offers a much richer and more complex blend of ...

Black holes that turn matter into energy could explain dark energy and answer two other cosmic questions. Now, the challenge ...

Here's a thought experiment that keeps planetary scientists awake at night. Strip every living thing from our planet, every bacterium, every blade of grass, every creature that has ever drawn breath ...