Planet 9 sits at the edge of scientific imagination, promising either an epic expansion of the Solar System or a lesson in ...

An ambitious effort to create a paradigm explaning near-death experiences has failed to capture many fascinating and often perplexing aspects of people’s brushes with death, top University of Virginia ...

Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

Under extreme planetary conditions, water turns into a strange, electricity-conducting solid hidden deep inside giant planets.

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

Scientists discover water that's solid and liquid. Superionic ice found in lab could explain Uranus and Neptune's bizarre ...

Discovered by volunteer scientists, this alien planet is out of synch with its siblings ...