Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

What we know about the search for ‘Planet Nine’ in our solar system - The idea of a massive undiscovered planet has been ...

Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency ...

A new study from NYU Abu Dhabi has found that high-energy particles from space, known as cosmic rays, could create the energy ...

However, giving birth, and looking after a newborn, would be far more difficult in zero gravity. After all, in space, nothing stays still. Fluids float. So do people. That makes delivering a baby and ...

James is a published author with four pop-history and science books to his name. He specializes in history, strange science, ...

As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red ...

A new study that examines the world’s total supply of fresh water warns that Earth’s most essential resource is quickly ...

From a half-million miles away, NASA's Europa Clipper spacecraft captured Mars with its two moons, Phobos and Deimos, in ...

COVER STORYFor centuries, the entangling concept of time has entranced humans. Time has remained constrained to a precept ...